Sublethal Research Articles

Less-LethalWeaponsand Civilian Injury in Police Use of Force Encounters: A Multi-agency Analysis.

Police use-of-force is a growing public health concern, with recent estimates suggesting that over 70,000 people are injured by police each year. To reduce the risk of injury to civilians, most police agencies authorize the use of various less-lethal weapons. However, to date, there is little consensus as to which types of less-lethal weapons are most effective at reducing injury risk. In this study, we test the differential effects of less-lethal weapons on civilian injury and injury severity using data on 2348 use-of-force incidents originating from 17 large urban and metropolitan law enforcement agencies from 2015 to 2019. Specifically, we assess the injury risks associated with conducted energy devices, chemical agents, impact weapons, and police canines, while controlling for a robust set of officer, civilian, and situational characteristics. Our results indicate that chemical agents reduce the risk of hospitalization or death significantly more than other weapon types, while police canines increase the risk of all injury outcomes significantly more than other weapon types. Adjusting for incident characteristics, chemical agents are predicted to cause hospitalization or death in 4% of cases, compared to 13% for conducted energy devices, 16% for impact weapons, and 37% for police canines. These findings suggest that civilian injury may be reduced through use-of-force policies that prioritize less severe modalities of force, though more research is needed on the contextual and long-term effects of these weapons.

Determination of the Perpetrator-Victim Position in a Case of Severe Traumatic Brain Injury due to a Less-Lethal Weapon Projectile, Based on Brain Injuries

Less-lethal (or non-lethal) weapons cause lethal and non-lethal injuries; this depends on many factors, including the shot distance and the modifications made to the operation of the weapon and the projectiles. This type of weapon has a similar shape to a firearm, shares the same physical and chemical operating principle and uses the combustion of a chemical substance to eject the projectile. In technical terms, the only difference is the projectile. Currently with the changes in weapons and projectiles, it is difficult to make a correlation. Just like lethal firearm projectiles and due to their operation, they leave macroscopic gunshot residues such as powder tattooing or soot deposition, only occasionally a contusion ring. In addition, there is a variety in the appearance of the entrance wounds. Therefore, it is very important to process the scene and carefully dissect the external wound and the surrounding area and, if possible, the recovery of the projectile. We present a case where a non-penetrating superficial injury to the skull produced trauma consistent with a coup contrecoup brain injury, which allows us to identify the perpetrator-victim position.

Main directions in the development of non-lethal weapons applicable in the Arctic region

The author discusses the current and promising means and methods of non-lethal confrontation. Non-lethal war is a violence aimed at the social death of the enemy without their physical elimination. Social death is a key concept in non-lethal (information, cyberwar, etc.) warfare.

The Value of Less-Lethal Weapons

<p class="MsoNormal" style="text-align: justify;"><span lang="EN-US" style="font-size: 14pt; font-family: 'times new roman', times, serif;">Less-Lethal Weapons, including electric Tasers, velocity-reduction bullet-capture projectiles, rubber bullets, beanbag rounds, and other less-lethal projectiles used in police departments, federal and local law enforcement agencies, and military policing operations, as well as for private use, are topics of significant debate in recent years. These weapons can reduce collateral damage, reputational risk, and legal exposure while preventing wrongful and unnecessary deaths caused by conventional bullet wounds. Yet, opponents have highlighted concerns regarding the safety and effectiveness of these weapons, as well as their potential to cause injury or even death. While the primary duty of law enforcement officials is to preserve order and execute the law while protecting individual rights, they ultimately achieve these goals by exercising their coercive authority. Society expects police officers to rely on their professional training and judgment when using physical force to defend citizens and themselves or to apprehend criminal suspects. Because police officers must occasionally participate in physical acts of coercion, it is unavoidable that some of these interactions may result in bodily injuries to individuals, including the officers themselves. These injuries have real costs, such as medical treatment, lost wages, municipal liability, court claims and settlements, riots, and legal or even criminal exposure, as well as less-tangible collateral costs, such as the erosion of police legitimacy and public trust, which are more difficult to quantify but arguably more influential in shaping long-term public perceptions than personal injuries alone. Less lethal technology eliminates some of the concerns raised by lethal weaponry. This study reviews the advantages and disadvantages of these less-lethal weapon technologies versus traditional firearms for use by the police force, federal agencies, and military police while also performing advanced analytics to model the valuation and return on investment for a law enforcement organization implementing such technologies.</span></p>

Legal Foundations of State Policy on Self-Defense Weapons: In Quest of a Balance between Public and Private Interests

The debate on the right of citizens to carry short-barreled weapons, including firearms of limited destruction, has been going on for more than 30 years. The essence of these debates goes far beyond the limits of administrative law, since it is not limited only by the administrative law mechanism for implementing the procedure for acquiring, carrying and using weapons, acting as part of the public legal mechanism for ensuring personal security, security of the society and the State. The relevance of the issues of civilian arms trafficking is aggravated by the complication of the criminal situation during periods of social or economic upheavals that determine the choice of the trajectory of development of state policy for arms trafficking as an area of public law relations. The arguments of supporters and opponents of the use of firearms for self-defense are usually accompanied by arguments based on faith and beliefs rather than on facts and measurements. The purpose of the study is to summarize the legal and empirical resources characterizing administrative law foundations of state policy in relation to lethal and non-lethal self-defense weapons; to assess domestic legislative decisions and determine the directions for further administrative law development of state policy regarding arms trafficking, the expediency of using short-barreled weapons, including firearms of limited destruction, as selfdefense weapons. The interdisciplinary approach made it possible to combine the results of legal and other humanitarian studies. In particular, the achievements of branches of legal sciences of Russian law are brought together: administrative law, theory and history of law, criminology and criminal studies, sociology of law. In conclusion, the paper provides the results of a theoretical study with due regard to the historical, delictological and sociological context of the problem. The author substantiates the necessity of changing the legal foundations of state policy in the field of trafficking in self-defense weapons and gives appropriate proposals.

They Have Always Been Military: On So-Called Militarized Policing in Canada

Over the last few years there has been growing attention to and discussion of the so-called militarization of policing. Unfortunately, much of this discussion poses the militarization of policing as a recent phenomenon. This paper examines policing in Canada within the context of an ongoing military practice. It shows that policing was founded on a military basis and continues to be carried out on a military basis as exemplified in the more recent developments that have raised alarm about militarization. It raises the need for a retheorization of policing within the context of capitalist social struggles and highlights some instructive recent theoretical developments toward that end. Properly understanding the police in Canada can help to contextualize and challenge current responses that are limited to reforms for police (de-militarization, de-escalation, improved training, non-lethal weaponry, etc.) or which even allow for the expansion of policing (community policing, drones, etc.). [Article copies available for a fee from The Transformative Studies Institute. E-mail address: journal@transformativestudies.org Website: http://www.transformativestudies.org ©2024 by The Transformative Studies Institute. All rights reserved.] KEYWORDS: Canada, Colonialism, Militarization, Policing, Protest, Royal Canadian Mounted Police, Settler States, War.

Non-lethal weapons and the sensory repression of dissent in democracies

This article examines the use of ‘non-lethal’ weapons (NLWs) by liberal democracies to govern dissent in non-war contexts. We argue that NLWs can enable sensorial governance, specifically through sensory repression of dissent. Although accented as non-lethal, NLWs are better conceived of as what we term ‘Weapons of Sensory Repression’ (WSRs). From tear gas to sound cannons to skunk bombs and more, WSRs target the human senses – visual, auditory, olfactory, proprioceptive – and impose debility not death, thus enabling the use of technologies of repression against dissenting collective assemblies at lower threat thresholds than conventional weapons, arguably disincentivizing alternatives to repression. Since law enforcement in liberal democracies is not explicitly linked to political control and such democracies derive legitimacy from responsiveness to public opinion, it is worth highlighting what WSRs make im/possible in this regard. Empirically, WSRs create and confirm subordinate citizenship in liberal democracies for those who are already de facto lacking in certain rights. Emphasizing that liberal democracies renew themselves through challenges involving mass mobilization, we suggest that the employment of these weapons transforms problems of political change into problems of technological crowd management by dehumanizing those that propose alternative logics for dominant economic, nationalist or racial orders.

Влияние антропогенного фактора на последствия применения огнестрельного оружия ограниченного поражения

Due to the development of the arms industry in Russia and the filling of various types of non-lethal kinetic weapons (NLW), also referred to as traumatic or kinetic weapons, the beginning of the XXI century is characterized by an intensive accumulation on the hands of the population in the Russian Federation (RF) of a significant number of its weapons. Thus, if in 2008 about 4.4 thousand crimes were committed with the use of traumatic weapons, then by 2012 the population of the Russian Federation had from 1.5 to 3.5 million samples of NLW in their hands. In 2015 alone, more than 1 million permits for possession of NLW were issued by the Ministry of Internal Affairs of the Russian Federation. The Nenets Autonomous District, which is part of the Arkhangelsk region, being along with other territories of the region, part of the Arctic zone of the Russian Federation, is among the leaders in the Russian Federation by the rate of increase in the number of registered crimes related to the illegal circulation of these weapons (+90.9 %). The combination of such factors as the presence of a significant number of firearms in the hands of the population, a high proportion of their illegal circulation and, as a consequence, the unjustified use of firearms in public places prompted us to study this problem from the side of the influence of anthropogenic (human) factor on human health.Purpose of the study. To study the influence of anthropogenic factor on the effects of NLW. Out of 248 victims, 235 (94.8 %) males and 13 (5.2 %) females were identified. The mean age was (31.8 years) and ranged from 16 to 64 years. The largest age category of 30–39 years was 100 (40.3 %) people, and the highest number of victims in the Arctic territory of the Arkhangelsk region was in 2011–2015. The subsequent decrease in the number of injuries is probably due to the adoption of a number of regulations tightening the turnover (FZ- № 398 of 28.12.2010 "On Amendments to Certain Legislative Acts", the order of the Ministry of Internal Affairs of Russia from 07.06.2022 № 403). A significant part of the victims — 80 (32.3 %) were admitted to hospital emergency rooms in a state of alcoholic or drug intoxication. As a result of the use of firearms, 3 victims (1.2 %) suffered disability and permanent disability. On the territory of the Arctic zone of the Arkhangelsk Region NLW were mostly used not for self-defense, but for hooligan motives 134 (98.5 %) cases out of 136 accurately determined.

Less-lethal weapons: ocular trauma in Chile as psychosocial trauma. Challenges from a human rights and comprehensive perspective.

In October 2019 in Chile, massive protests broke out in the so-called social uprising. The repressive response of the armed forces and Carabineros (Police) resulted in serious and mas-sive violations of human rights, with between 400 and 500 victims of ocular trauma caused mainly by shots from anti-riot shotguns, constituting the largest number of cases in the world linked to a single event. It is proposed to evaluate the different dimensions of the impact of ocular trauma due to state violence, using the concept of psychosocial trauma and a support model that integrates the medical-psychological and social dimensions. Human rights violations of the period are described, focusing on cases of ocular trauma, and state and civil society responses. The requests of a survivors' organisations regarding truth, justice and reparation is presented. A clinical case of ocular trauma treated in our centre is analyzed. Survivors of ocular trauma manifest post-traumatic reactions regardless of the severity of their ocular injuries. The impact on the mental health of survi-vors of ocular trauma due to state violence is a phenomenon where the psychic and psychosocial im-pact of trauma due to socio-political violence intersects with the short- and long-term mental health effects. The impact of sociopolitical trauma must be understood considering both the in-dividual and social subject, considering their cultural, socioeconomic and political reality. Recovery from traumatic psychological injury must be addressed in its medical, sensory rehabilitation, psycho-logical and psychosocial dimensions, including processes of social recognition, search for justice and comprehensive reparation of damage. In contexts of impunity, a model is proposed that integrates rehabilitation with psycho-legal support, promotion of agency and organisation, within the frame-work of commitment to the movement and principles of human rights.

Assessment and litigation of ocular injuries by less-lethal weapons.

The main cause of serious ophthalmological injuries, includingviolent eye amputations in the context of so-called less lethalweapons, is the use of blunt objects, such as batons or extendablesticks and the use of kinetic energy projectiles (rubber bullets,pellets, foam projectiles or others). Such injuries in the contextof population control have been considered to constitute cruel,inhuman or degrading treatment or even torture when they arecarried out, intentionally or unintentionally, by State officials(or with their acquiescence or protection) and involve any of thepurposes contemplated in the Convention against Torture. Dueto their special characteristics, they constitute rights violationsthat entail unique difficulties and complexity from both a legaland forensic point of view. This paper addresses some of thesedifficulties with practical legal and forensic recommendations.It is structured in two parts: First, legal, where we considerlegal difficulties and provide suggestions on elements for obtainingevidence are given. Second, medico-psychological andforensic where we review the elements to be considered in theinterview, the medical and ophthalmological evaluation, andthe psychometric, psychological and psychiatric evaluation.

Methodology on Development of Less Lethal Safety Device Stun Stick

Abstract: The use of electroshock weapons, such as TASERS, has become widespread among defence agencies, including police departments and prison guards. It serves as a means to immobilize individuals and maintain control. Despite their effectiveness, these devices have a very long history of accidents, some of which have resulted in severe, and occasionally lethal, injuries. Acknowledging these inherent risks, there is a urgent need to explore alternatives that balance effectiveness with safety. This project introduces the concept of a "Stun Stick" as a potential less-lethal weapon, aiming to address the shortcomings of traditional electroshock devices. The Stun Stick offers the prospect of enhanced safety for both officers and subjects while preserving the imperative need for effective law enforcement tools. This discussion delves into the design, functionality, and potential benefits of the Stun Stick, advocating for a shift towards its consideration in the ongoing discourse surrounding lesslethal options for law enforcement agencies.

ВПЛИВ ПОГОДНИХ УМОВ НА РЕЗУЛЬТАТИ ЗАСТОСУВАННЯ КІНЕТИЧНОЇ ЗБРОЇ НЕСМЕРТЕЛЬНОЇ ДІЇ

Currently, when designing non-lethal kinetic weapons, the degree of protection of the target provided by clothing items, especially during cold seasons, is not considered. As a result of the loss of part of the energy of the impact element on deformation and destruction of clothing items, the effects on the target can significantly differ from those calculated for normal conditions and exceed permissible limits. This may lead to the failure of the firing task due to insufficient or excessive action of the impact element on the target. For the purpose of determining the influence of the degree of target protection by clothing items on the results of the action of the impact element, natural experimental studies were conducted using a pneumatic ballistic installation and a target simulator made of ballistic plasticine "Beschussmasse". The results yielded empirical dependencies of the penetration depth of the impact element from its velocity upon meeting the target for several protection variants of the object of weapon application by clothing items. These dependencies can be used during the design of non-lethal kinetic weapons, as well as for selecting models of such weapons from those available to perform firing tasks in specific temperature conditions. The work also draws attention to the need to consider the influence of the temperature of the powder on the burning rate and muzzle velocity of the impact element. To increase the effectiveness of the application of non-lethal kinetic weapons, it is proposed to develop a set of ammunition for such weapons with different masses of powder charge, which would correspond to the ambient temperature and take into account the degree of protection of the object of weapon application by clothing items and the dependency of the burning rate of the powder on the temperature. The direction for further research is to study the influence of the hardness of the impact element of the non-lethal kinetic weapons on the results of its action on the target.

Conducted Electrical Weapon Fire Risk in the Presence of Supplemental Oxygen.

Conducted electrical weapons (CEWs) are nonlethal weapons used in tactical environments. Tactical EMS (TEMS) operators provide patient care in environments where CEWs are present. CEWs may produce a spark that can be a source of ignition. When supplemental oxygen is in use by a TEMS operator, the flammability risk from the CEW is unknown. We measured oxygen levels over 20 minutes in an enclosed space with a supplemental oxygen source maximally flowing. Measurements were taken at various distances from the oxygen source to establish baseline concentrations. These concentrations were replicated within a plexiglass box where a CEW was activated to create a sparking arc between probes embedded in a fresh swine shoulder (with skin intact). Various flammable materials, typically found in a patient care setting were used as potential fuel sources. The highest oxygen levels were achieved directly at the source. At 15cm from the source, the maximum oxygen concentration was 31.5%. Within the box, ignition was only achieved at oxygen concentrations greater than 45% and only when human hair was present as fuel. No ignition was achieved at oxygen levels below this regardless of the tested fuel present. Ignition from a CEW is possible at supplemental oxygen levels greater than 45% when human hair is present. In an enclosed space, oxygen concentration levels of 45% are only present within 15cm of a flush rate oxygen source. The likelihood of CEW-caused ignition in such settings with supplemental oxygen in use is extremely low.

Doctors with Borders

This paper presents the real case of a military surgeon who is the only one working at a small hospital in Iraq. The military surgeon can only operate on one wounded soldier due to limited medical resources. The first wounded soldier to arrive is the enemy. The second wounded soldier to arrive shortly after the enemy is a compatriot. Both soldiers will die without lifesaving surgery. The military surgeon is ordered by his superior not to operate on the enemy. Under the Geneva Conventions, physician-soldiers are legally required to give medical attention impartially. The only exception is urgent medical need. Both soldiers, friend and foe, have an urgent medical need. Dual-loyalty dilemmas such as this one can arise for military medical practitioners when loyalty to patients comes into conflict with loyalty to third parties such as the state. In this paper, several solutions to the dual-loyalty dilemma are considered and rejected. Solutions to the dual-loyalty dilemma ultimate fail because they rest on the physician-as-healer model which grounds contemporary medical ethics. The view that the ultimate objective of physicians and medicine is winning battles is defended. Physicians are non-neutral and partial fighters who sometimes must do harm. Medicine is a weapon that physicians use to fight an enemy. The only relevant differences between a soldier and physician are the kind of enemy, location of the enemy, and the type of weapons used against the enemy. The paper concludes that physician-soldiers are doctors with borders. There is no dual-loyalty dilemma on the physician-as-fighter model. The military surgeon should obey his orders and not operate on the enemy. Implications of the physician-as-fighter model for mass casualty triage and physician-soldier participation in non-lethal weapons development are considered.

PROMOTING ECOLOGICAL AWARENESS IN METAL GEAR SOLID V: SOCIAL SEMIOTIC APPROACH

Video game is a new media of telling stories to young people and adults and it is no longer seen as gameplay only but gameplay with story. Metal Gear Solid V: The Phantom Pain took Cold War as the main story background tells the story differently. The game system of this video game offers freedom to players to interact with anything during the gameplay, but this freedom has consequences. Applying social semiotic approach, this paper aims to identify how appraisal theory and narrative representation can be used to promote ecological awareness. After observing, collecting and viewing, transcribing and analyzing multimodal data, the researchers find that killing non-playable characters in form of human and animals and even enemy will reduce the score which is important in developing the playable characters’ weapons and equipment. Adopting the theory from Martin White in appraisal theory and Kress and van Leewuen, Caple in narrative representation, this paper also finds that appraisal theory is used to guide the players to play in ethical way such as using non-lethal weaponry, capturing wild animals to protect them from war, and collecting medical plants as needed only, besides, the enemy soldiers can be hired and give beneficial results to the players when they are used to play. In narrative representation, the freedom of choices is designed to make ethical play more plausible.

Revenge Effects and Electronic Control Weapons: A Cautionary Tale about the Unintended Consequences of Technology in the American Justice System

Nonlethal weapons, such as electronic control devices (ECWs), have become increasingly commonplace in American law enforcement as our society seeks to reduce citizen injuries and deaths at the hands of the police. There is reason to suspect, however, that police possession of nonlethal weapons such as ECWs can sometimes increase the likelihood that a citizen will suffer serious injury or death during an interaction with the police. This paper lays out the theoretical basis for this suspicion and presents empirical evidence that the presence of ECWs has led police officers to shoot citizens in numerous cases where they otherwise would not have discharged their firearms. Police leaders—and policy makers throughout the criminal justice system—should carefully consider the potential downside(s) of given technologies before adopting them and seek means to ameliorate negative consequences if they opt to use them.

Craniofacial wound from a traumatic pistol injury in a 3-year-old child

With the advent of traumatic self-defense weapons among Russian civilians (weapons of limited destruction and nonlethal kinetic weapons), several studies on injuries among the adult population have been published in the medical literature. Skull injuries are the most severe, often fatal, injuries. To date, there are only isolated descriptions of such injuries in children.
 Description of the observation. According to the parents, the 3-year-old boy shot himself in the face with an Osa-4 pistol at home. He did not lose consciousness, and the bleeding was light. He was admitted to the central district hospital, from where he was evacuated by an ambulance team to Children’s City Clinical Hospital No. 9 named after. G.N. Speransky, Moscow. Upon admission, the patient was in a serious condition, conscious, and lethargic, reacted negatively to examination, and had 14 points on the Glasgow coma scale, and his hemodynamics was stable. Local status: In the upper part of the dorsum of the nose, a bullet entry hole was observed in the form of a bruised wound of irregular shape, pronounced swelling in the area of the left orbit, and hematoma of the upper eyelid. X-ray images of the skull showed a shadow of a foreign body (bullet) in the projection of the left orbit and ethmoidal labyrinth. The location and extent of damage were clarified by computed tomography. Under endotracheal anesthesia, a supraorbital trans-eyebrow approach on the left with layer-by-layer tissue dissection along the wound canal exposed a part of the bullet, wedged into the medial wall of the orbit and cells of the ethmoid bone. The bullet was removed, and bone fragments and layer-by-layer sutures were removed. Diagnosis: Gunshot causing a blind craniofacial non-penetrating wound in the dorsum of the nose and left orbit, multiple comminuted fractures of the ethmoid bones and superior and medial walls of the left orbit, contusion of the basal parts of the left frontal region of the brain, blunt trauma OS stage 2, local contusion, and retinal hemorrhage The postoperative period passed without complications. The child received a combination of antibacterial and restorative therapy. Vision was preserved, no neurological disorders were detected, and the cosmetic result was good. The patient was discharged in satisfactory condition under the supervision of an ophthalmologist, neurologist, and maxillofacial surgeon. This observation is presented to demonstrate damage to skull structures from traumatic weapons and will aid in further generalization of the treatment results of this type of wound in children. Prevention of injuries in children from traumatic weapons requires extensive educational work among parents who own these weapons.

Traumatic injuries by conducted electrical weapons: Case report of self-injury to the hand during stun gun training.

The use of non-lethal weapons has spread worldwide, being introduced as an alternative to firearms in many countries such as the United States or the United Kingdom. Among non-lethal weapons, conducted electrical weapons have been adopted worldwide, to control unruly suspected criminals or to neutralise violent situations. The stun gun belongs to this category and is the most widely available, with more than 140,000 units in use by police officers in the field in the US, and an additional 100,000 electrical stun guns owned by civilians worldwide. In Italy, the use of conducted electrical weapons by law enforcement has only recently been introduced, with private use and commercialisation still prohibited, mainly due to controversies related to the potential dangers of such devices.Before the official adoption, several experiments had to be carried out, with mechanisms that reproduced the ballistics of the stun gun. Here we present the case of a man who suffered a self-injury trauma to his hand during a ballistics exercise with a crossbow loaded with stun gun probes.

Two case reports of fatal injuries sustained from tear gas guns loaded with pebbles as missiles.

These two case reports are of fatal injuries from less-lethal weapons (tear gas guns) using pebbles as an unconventional ammunition. Reported here are the fatal outcomes of two 19-year-old males, one with head trauma and the other with abdominal trauma. They were admitted to the ED and subjected to immediate exploratory operations, but they passed away. On autopsy, the first case demonstrated a right frontal bone fracture with subdural hemorrhage and a 3 × 2.5cm pebble retained in the skull. The second case showed severe liver laceration in close vicinity to a cubical pebble (3.2 × 3cm). The mechanical forces involved in skull fracture and autopsy are discussed. In the current cases, the relatively larger weight and size together with the surface configuration of the pebble projectile were the main influential factors that contributed to the severity of damage and fatality.These case reports are a working example of the effect of the mass of projectiles in increasing the power of penetration. The direct shooting to the head and the abdomen together with the misuse of these weapons are capable of inflicting fatal injuries.

An analysis of protesting activity and trauma through mathematical and statistical models

The effect that different police protest management methods have on protesters’ physical and mental trauma is still not well understood and is a matter of debate. In this paper, we take a two-pronged approach to gain insight into this issue. First, we perform statistical analysis on time series data of protests provided by ACLED and spanning the period of time from January 1, 2020, until March 13, 2021. After observing the data, it becomes apparent that employing kinetic impact projectiles is correlated with an increase in protests in the following days. Moreover, it serves as a more accurate indicator of the subsequent death toll compared to the mere number of protests. This leads to the conclusion that the utilization of less-lethal weapons appears to provoke rather than quell protests, exhibiting an inflammatory effect. Next, we provide a mathematical framework to model modern, but well-established social psychology research on compliance theory and crowd dynamics. Our results show that understanding the heterogeneity of the crowd is key for protests that lead to a reduction of social tension and minimization of physical and mental trauma in protesters.