Investigative Agencies Research Articles

호주 수사기관의 미결수용자 면담 조사 방식에 관한 소고

호주 수사기관의 미결수용자 면담 조사 방식에 관한 소고

On Some Modern Special Investigation Methods and Prevention in Criminal Proceedings

Contemporary reality shows that a considerable part of offenders make use of modern technologies, are in step with the latest changes in modern tech, which hinders greatly the preventing activities, revealing and fight against offenses. The starting point of the research are legislative intervention proposals on the introduction of two tools, subsequently acquiring certain technologies and softs, and strengthening the cooperation between law enforcement agencies and private sector, to help prosecuting authorities and investigation agencies. These methods take the form of dual nature, of mixed functions methods, and could contribute decisively to prevention and effectively counter certain categories of offenses; strengthen the evidence in criminal proceedings; determine some categories of subjects to abandon (quit) criminal activities initiated and/or already in progress; identifying suspects and others. Thus, the two proposed methods could improve the activity of law enforcement agencies and are useful to us for varying situations such as when, while the suspect is identified, the evidence is insufficient; or there is no certainty that the perpetrator really pursues the satisfaction of the alleged criminal intent; prevent the occurrence of harmful consequences; cases in which the criminal intent is not fully satisfied, as well as other assumptions. The conceptual forms of these methods are: controlled disconnection of certain electronic communications services; obstruction, jamming or controlled interference of electronic communications services. The theoretical and scientific support of the paper is comprehensive, applying the logical, the comparative and the systemic methods of research.

Socio-demographic Portraits of Foreigners in the Activities of Lithuanian Law Enforcement Institutions: Case Studies of Pre-trial Investigation Agencies

The article discusses the socio-demographic and related characteristics of foreign residents in the work of pre-trial investigation institutions of the Republic of Lithuania. Specific attention is drawn to the victims of crime against the foreigners and to the analysis of criminal offenses that‘s been comminted by foreign residents, their participation in pre-trial investigation processes. The aim is to address the need for pre-trial investigation institutions of competences and qualification improvement in work with foreigners. The study identifies and discusses general characteristics of foreigners, who has been suspected of having committed an offense addressing the data on age, gender, education, employment, and trends of changes in there aspects in 2008 - 2017 period of time. After reviewing the predominant spectrum of pre-trial investigations of criminal offenses and identifying general characteristics of foreigners suspected and affected by criminal offenses, it is noticedto be a justifying an acquirement of competences and raising of qualifications of pre-trial investigation officers. DOI: http://dx.doi.org/10.5755/j01.ppaa.18.1.23129

Differentiation of endogenous and exogenous γ-Hydroxybutyrate in rat and human urine by GC/C/IRMS.

Gamma (γ)-hydroxybutyric acid (GHB) has been reported to be an endogenous compound in the mammalian brain. It used to treat symptoms of alcohol, opioid, and drug withdrawal and cataplexy of narcolepsy. However, it is often used for criminal purposes because it is colorless, tasteless, and has short half-life. For this reason, there is a need for a method of distinguishing between endogenous and exogenous GHB administration. Therefore, urine from rat before administration of GHB and GHB urine after the single intraperitoneal injection of GHB as 30mg/100g were collected from Sprague-Dawley rats (7weeks old, 10 males and females). Negative control urine, urine from individuals suspected of taking GHB, and urine from victims who were GHB-involved crime were collected. In urine samples, GHB was extracted with two-step SPE and collected fraction was derivatized and analyzed by GC/MS and GC/C/IRMS. In GC/MS and GC/C/IRMS analysis of rat urine, there was a statistically significant difference between urine from rat before administration of GHB and GHB rat urine (p < 0.05). In GC/MS analysis of human urine samples, there was no significant difference among human urine groups (negative control, suspects' urine, and victims' urine), but in GC/C/IRMS analysis of human urine samples, there was a statistically significant difference among human urine groups (p = 0.0001). Through these results, GC/C/IRMS can be more effective tool to identify endogenous and exogenous GHB in urine than GC/MS. This study can build a drug management system in forensic investigation agency and offer interpretation method to forensic science and court.

영국 수사기관의 미결수용자 접견 및 호송에 관한 소고 : 수용자 소환명령(Inmate Production Orders)을 중심으로

본 연구는 법적인 근거 없이 관행 차원에서 이루어지고 있는 우리나라 교정 당국의 검찰수사기관에 대한 미결수용자 연출, 동행 호송 지원업무의 문제점을 검토하고, 영국에서 이루어지고 있는 수사기관의 미결수용자 접견, 호송 실태를 살펴보는데 목적이 있다. 우리나라는 현재 경찰 수사기관에게는 교정시설 내 접견 조사를 원칙으로 하고 있고, 검찰 수사기관에는 검찰 시설로 직접 미결수용자를 호송시켜 사건 접견 조사를 받도록 하는 이원화된 구조를 운용하고 있다. 이에 미결수용자의 방어권 보장 및 인권 보장이 크게 우려되는 상황인바, 최근의 문헌고찰을 통해 영국의 사례를 가지고 해외 교정에서 이루어지고 있는 수사기관 지원 호송 업무 절차를 검토할 필요가 크다. 국내외 관련 문헌연구 고찰 결과, 수용자에 대한 수사기관의 면담은 영국의 경우 원칙적으로 “구금시설 방문”을 기본으로 하는 것으로 나타났다. 즉, 영국과 같은 선진 교정 시스템을 갖춘 나라에서도 미결수용자의 외부 호송(escort) 업무는 매우 예외적으로 이루어지고 있다고 볼 수 있다. 원칙적으로 교정기관 내 수사접견실로 경찰이나 검찰이 직접 방문하여 구금시설 내에서 수용자를 면담하는 것이 통상적이라고 하겠다. 예외적인 경우에만 수사기관이 요청한 “수용자 소환명령(Production Orders of Prison Inmates)”신청을 교도소장이 허가하게 되고, 이 소환명령이 내려진 경우에만 수사기관이 미결수용자를 호송해서 교정시설 밖으로 데리고 나갈 수 있다. 이 연구에서는 영국 교도소장의 미결수용자 소환명령을 상세히 살펴본 후, 우리나라 미결수용자 보호 및 방어권 보장에 관한 정책 변화의 필요성 등을 검토해 보았다. 최근 우리나라에서 심각한 문제로 대두되고 있는 교도소 과밀화 및 교정인력 부족 문제를 해결하기 위해서 영국과 같은 “미결수용자 소환명령” 절차가 어떻게 도입되어야 하는지 살펴보고, 경찰과 달리 검찰 수사기관만이 관행적으로 사용하고 있는 현재의 미결수용자 외부 검찰청 호송 면담방식을 어떻게 수정해야 가야 하는지를 구체적으로 탐색해 보는 기회를 가졌다고 하겠다.

Issues of the Professional Development of Investigators of Pre-Trial Investigation Agencies of the National Police of Ukraine

It has been noted that professional development of investigators of pre-trial investigation agencies of the National Police is a multi-faceted process, which includes both statutory regulated mandatory measures and appropriate professional and psychological support, as well as self-education and self-improvement of specialists. That is why consideration of the problems arising in the process of professional development and self-affirmation of employees of investigative units is a prerequisite for improving the efficiency of their activities. Legislative acts regulating the peculiarities of the professional development of investigators of the National Police of Ukraine have been considered.&#x0D; Among the disadvantages of psychological support for passing consistent professional-genetic steps by investigators within the stage of professional development, the author has studied issues at the stages of professional adaptation (adaptant), mastering professional activity (intern), creative self-expression (master), mentoring (mentor), dismissal and social re-adaptation.&#x0D; The author has analyzed the problems of advanced training of investigative units’ employees and the problems of professional training among the disadvantages of organizational and methodological support for the professional development of investigative units’ employees after the graduation from the professional training.&#x0D; It has been also noted that the heads of structural units do not always let their subordinates to study at the correspondence course in institutions of higher education; investigators have lack of time for self-education, self-improvement and self-training for studies that reduces their motivation to self-improvement.

Enabling Environment for Participation in Information Storage Media Export and Digital Evidence Search Process using IPA

Recently, the use of digital media such as computers and smart devices has been rapidly increasing, The vast and diverse information contained in the warrant of the investigating agency also includes the one irrelevant to the crime. Therefore, when confiscating the information, the basic rights, defense rights and privacy invasion of the person to be seized have been the center of criticism. Although the investigation agency guarantees the right to participate, it does not have specific guidelines, so they are various by the contexts and environments. In this process, the abuse of the participation right is detrimental to the speed and integrity of the investigation, and there is a side effect that the digital evidence might be destroyed by remote initialization. In this study, we conducted surveys of digital evidence analysts across the country based on four domains and thirty measurement items for enabling environment for participation in information storage media export and digital evidence search process. The difference between the level of importance and the performance was analyzed by the IPA matrix based on process, location, people, and technology dimensions. Seven items belonging to “concentrate here” area are one process-related, three location-related, and three people-related items. This study is meaningful to be a basis for establishing the proper policies and strategies for ensuring participation right, as well as for minimizing the side effects.

The Importance of Melatonin Detection in Pediatric Deaths.

Melatonin is an endogenous hormone that regulates sleep patterns. It is available in varying formulations and dosages and is marketed as a natural substance that can alleviate insomnia. Recent news reports indicate that melatonin has been administered without appropriate authorization in daycare settings. Even though lethal outcomes have not been solely attributed to exogenous melatonin overdose, it has been relevant to select police and postmortem investigations. A quantitative liquid chromatography-tandem mass spectrometry (LC-MS/MS) assay was developed for the analysis of biological specimens. Results of 22 positive blood samples were evaluated based upon gender, age, and melatonin concentration from cases submitted by clinical, police, and death investigation agencies. Two cases are described. In Case 1, a 9-month-old was found unresponsive after cosleeping with a sibling. Allegations included exposure to an unspecified pesticide and dextromethorphan, and consumption of half a cigarette. There was admitted use of melatonin. Melatonin was quantified in blood and gastric fluid at concentrations of 13 ng/mL and 1200 ng/mL, respectively. In Case 2, a 13-month-old was found nonresponsive in a shared room. Melatonin was found within some of the sippy cups. The infant was extremely warm to the touch. Resuscitative efforts were unsuccessful and death was pronounce3d. Analysis showed a result of 210 ng/mL in blood. The presented quantitative LC-MS/MS method can successfully be applied to evaluate exposure to exogenous melatonin. Toxicology testing can assist in the investigation of these case types by substantiating the purposeful administration of melatonin.

A Psychopathic Analysis of Death Incidents Occurred in a Military Base in Korea: Implications for Prevention

이 연구의 목적은 군 내 사망사건을 사이코패스 특징과 연계 분석하여 병영 내에서 사이코패스들이 저지르는 범죄피해를 예방하기 위한 방안을 제시하고자 한다. 이를 위해 00사단 임00병장 총기 난사 사건, 00사단 윤00일병 사망사건을 감정&#8901;대인관계 측면, 행동 양식적 측면에서 사이코패스 성향을 분석하였다. 이 연구결과 예방대책으로는 첫째, 사이코 패스들의 조기식별과 격리를 위한 새로운 인성검사 진단기법이 개발되어야 한다. 둘째, 병영생활 전문상담관, 정신과 전문의 및 간부들에게 개발된 인성검사 진단기법 교육을 통해 사이코패스 식별능력을 길러줘야 한다. 셋째, 수사기관 헌병은 전문프로파일러를 양성하여 사건발생시 원인을 면밀하게 분석하여 국민들이 납득 할 수 있도록 해야 한다.The purpose of this research is to suggest alternatives to prevent a psychopathic crime in a military base by analyzing death incidents occurred in military bases in Korea. Based on the two cases on the “Goseong killing spree incident” and “death incident of Pvt. First Class Yoon”, this research analyzes their psychopathic features with emphasis on emotional, interpersonal, and behavioral perspectives. As the result of the research, some strategies to prevent a psychopathic crime are suggested. First, a new diagnostic test for early identification and isolation of psychopathic patients must be developed. Second, barracks counselors, military surgeons specialized in psychology, military school students, and field executives should have improved capabilities to discern psychopaths through a new method of personality test. Lastly, the military police in the investigation agency should train professional profilers who can accurately investigate a cause of incidents and provide a clear and reasonable explanation to the public.

Reformation of the judicial appraisal adoption system used by party institutions entrusted by the investigation agency in criminal proceedings

The new requirements of trial-centered litigation in China are a concrete manifestation of the reform of the rule of law under Xi Jinping's new socialist era. The effective implementation of judicial appraisal lays a solid foundation for the correct identification of facts, accurate conviction, and sentencing, and technically, it should guarantee a fair trial. However, in practice, judicial appraisal opinion carries the risk of a diminished trial that deviates from the trial-centered requirement to substantiate a charge and can easily lead to unjust cases. This paper seeks to discuss the system of identification of property loss involved in criminal proceedings, which is implemented by a third-party appraisal institution entrusted by the investigation agency, and highlights the fact that the third-party appraisal institutions in judicial practice are currently reliant on cooperative thinking, but countenance the lack of a mechanism for effective accountability, and the court's propensity for their support. This leads to the verification components of the trial being depreciated, which may lessen the validity of the appraisal opinion (substantiation). In response to this problem, the author hopes to provide some suggestions to assist third-party appraisal agencies in the completion of judicial appraisal and achievement of their trial-centered reform goal by rationalizing the relationship between the investigation agency and identification institution, establishing a hierarchical accountability mechanism, and improving the rules governing testimony in court.

УЧАСТЬ ЗАХИСНИКА ПІД ЧАС ЗАТРИМАННЯ ОСОБИ ЗА ПІДОЗРОЮ У ВЧИНЕННІ СЛУЖБОВОГО ЗЛОЧИНУ

Apprehension of a person on suspicion of committing of an official crime contains a potential threat to the law enforcement bodies of the requirements of Criminal procedural code of Ukraine in order to achieve short-term media effect in the demonstration of "effective struggle" with white-collar Crime. However, there are no procedural errors under the active position of the protection party, as a rule, offset the evidence collected in violation of the current criminal procedure legislation, which results from the adoption by the courts of Ukraine of corrective proceedings. The purpose of the article is to study procedural issues arising in connection with law enforcement agencies to detain a person suspected of committing a crime. The defender's participation in the stage of detention is important, because at this stage, a person who is potentially is suspected in the committing of official crime is especially in need of skilled legal assistance. Often, after the actual detention, questioning persons, recognitions, and on the petition of detained investigators are misled by explaining that the legal aid to the defender is granted from the moment of announcement of the detention protocol. In the context of applicable provisions of art. 208 the Criminal procedural code of Ukraine confirmed the correctness of the opinion on the wrongness of some detentores committed during the last time. In particular, there are numerous cases of detention of heads of central executive authorities (during the session of the Cabinet of Ministers of Ukraine), the deputies (during the session of the Verkhovna Rada of Ukraine or immediately after) for crimes committed by the weeks, Months, years ago. In practice, the defender does not provide access to a person who was delayed to the "crime scene" or "under the hot" and delivered to the pre-trial investigation agency, which needed immediate legal aid. The solution to this problem is seen in the rapid actions of the defender to provide the widest possible public publicity of the mentioned illegal actions of the pre-trial investigation agency. Legislative regulation requires the definition of the meaning of "an authorized service person", which has the right to conduct detention without the ruling of an investigative judge or if any. It is argued that such a category of persons should include employees of the national police, security authorities, bodies controlling adherence to tax legislation, detectives unit, internal control unit National Anti-Corruption Bureau of Ukraine, bodies of state Bureau of Investigation, bodies of State Border guard Service of Ukraine etc. An important aspect of providing legal assistance to a person arrested on suspicion of committing an official crime is the need to find out all the information about the person with the security and the circumstances of the detention: the actual time, place, or other persons who stayed with him or the grounds for detention and procedural rights have been reported, whether the video (photo-) shooting, which was seized during the detention, whether a personal search was held or any documents were selected, whether the explanations were selected or under-protective any investigative actions, etc. The decision on further procedural behaviour should be taken only after the discussion with the client of the protection position, clarification of procedural rights and art. 63 of the Constitution of Ukraine. In the event that the customer agrees to give evidence, the lawyer clarifies the procedure for questioning the suspect, his rights, to discuss the contents of the testimony, questions to be seen.

Взаємодія підрозділів кримінальної поліції та органів досудового розслідування в документуванні кримінальних правопорушень

The purpose. Definition of the notion and essence of interaction of criminal police units with pre-trial investigation agencies during documenting criminal offenses, as well as the definition of certain problem issues related to its implementation. Methodology. During writing, scientific methods of analysis, induction and deduction were used. The theoretical basis for the writing of the article was the work of domestic and foreign scholars devoted to problematic issues of the activities of pre-trial investigation agencies and criminal police units, as well as regulatory acts regulating their interaction. Scientific novelty. The scientific novelty of the publication is a systematic analysis of the essence of the interaction of criminal police units with pre-trial investigation agencies during the documenting of criminal offenses. The reasons for the implementation of the interaction, its principles, and the concept of actual data as the main constituent of interaction within the framework of information exchange are presented. It has been established that documenting carries a lot of semantic loads, which are combined in concerted activity aimed at achieving the goal, accomplishing tasks or achieving the result. Conclusions. Documenting as an independent element of evidence is ineffective. In order to bring the perpetrator to criminal responsibility, the results of documentation should be &ldquo;legalized&rdquo; in the criminal procedural law by conducting investigative (search) actions. In order to effectively ensure the implementation of justice, it is necessary to apply in the complex the operational-search and criminal-procedural, as well as other branches of law, which is conditioned and realized in the interaction of their subjects. On the basis of the analysis, the actual determination of the interaction of the criminal police units with the pre-trial investigation agencies during the documenting of criminal offenses is proposed

Cryptocurrencies, Blockchain and Regulation: A Review

The evolution of money has accompanied the development of civilizations and technological innovations, leading to today’s cryptocurrencies. Cryptocurrencies have become a popular mode of payment globally because of their low cost, high-speed transferability and a decentralized tracking network that provides secure transactions and a high degree of anonymity. However, the decentralized system of cryptocurrencies has made global monetary systems more dynamic and therefore more prone to misuse as well as posing a threat to financial stability. Cryptocurrencies are also gaining popularity in Pakistan: its first cryptocurrency, named ‘Pakcoin’, was launched in 2015. The State Bank of Pakistan does not recognize any digital currency, and the Federal Board of Revenue and Federal Investigation Agency have taken legal action against local and internationally traded cryptocurrencies. This article reviews these risks and provides various regulatory solutions so that methods can be developed to improve the management of financial innovations and create a safer environment in which financial innovation can continue. Furthermore, developing countries such as Pakistan can take advantage of distributed ledger technology (used in cryptocurrencies) in applications including: microfinance to help the unbanked, in data identification systems and in land registries to help enforce property rights.

Cyberbullying in Pakistan: Positioning the Aggressor, Victim, and Bystander

This study explores cyberbullying prevalence, causes, reasons, and preventive measures from the perspective of victims and bystanders. The data were gathered from 329 male and female students of different age groups through an open-ended questionnaire and cyberbullying confession pages. Constructivist thematic framework was applied to look for commonly emerging patterns in the data. The study revealed that the likelihood to become a victim to cyberbullying decreased with an increase in age. However, there was no association between gender and cyberbullying. The study showed that various linguistic resources were exploited by the aggressors to victimize the participants. However, being sophomoric users of social media sites and having offline disputes were the core reasons of cyberbullying among a majority of victims. The participants valued the support of parents and friends, and showed faith in the preventive measures taken by educational institutes and Federal Investigation Agency, Pakistan against cyberbullying assaults. Findings from this study contribute to the research on cyberbullying, which is still in its infancy in Pakistan and may help in formulating cyberbullying prevention program.

The structure of forensic characteristics of murders committed by convicts in prisons

In order to keep and strengthen law and order in prisons it is very important to have both the final results of investigating crimes committed by convicts, and the results of certain procedural actions that ensure the timeliness and validity of criminal proceedings, the rapid establishment of a perpetrator by the help of evidence, to take necessary measures for his isolation from other convicts, the urgency of identifying and eliminating the causes and conditions that contributed to the commission of a crime. Investigation of a crime in accordance with the above mentioned requirements allows completely, comprehensively and objectively to establish the circumstances, which are subject to proving within criminal proceedings. Preliminary clarification of such circumstances is a necessary precondition for proper hearing the case by the court and the appointment of legal and substantiated criminal penalties for guilty party. This allows to achieve the objectives of general and special crime prevention by persons held in prisons in the most effective method.&#x0D; The author of the article has analyzed the practice of pre-trial investigation agencies and scientific views regarding the establishment and disclosure of the structure of the elements of forensic characteristic of murders committed by convicts in prisons. The notion of the structure as a system of elements of forensic characteristic has been defined and solved. The author of the dissertation has analyzed scientific thoughts, which reveal the notion of forensic characteristic, as well as its elements and defines the specific elements of forensic characteristic of murders committed by convicts in prisons.&#x0D; In the author’s opinion, the elements of forensic characteristic of murders committed by convicts in prisons include the following: a) offender’s personality and his behavior towards the commission of a crime and after; b) place, time and circumstances of committing a crime; c) the method of committing a crime; d) the conditions for the protection of the object; e) victim’s personality; f) method of withholding a crime.&#x0D; The study allowed to identify a number of issues, the solution of which may assist to improve the procedures for detecting and investigating criminal offenses related to murders committed by convicts in prisons.

TO THE QUESTION ABOUT MODERN TRENDS OF THE REFORMING OF THE PRE-TRIAL INVESTIGATION AGENCIESIN UKRAINE

The article pays attention to the issue of the current state policy in the sphere of reforming the pre-trial investigation agencies. The author focuses on the National Anti-Corruption Bureau of Ukraine, the State Bureau of Investigation, as well as on the bodies of the State Criminal-Executive Service of Ukraine, which is vested with powers of pre-trial investigation. The author demonstrates statistical data on the work of individual bodies, and also states significant successes in their work. The article also analyzes the reasons for which the start of work of some bodies is significantly delayed.

Arguing the Lethal Imaginaries of Terrorism and Methods of Its Tackling – An Analysis Under Politico-Legal Framework

Terror activities in different parts of the country forced the Government to take some serious steps. The establishment of specialized and dedicated anti-terror agency i.e. National Investigation Agency (NIA) is one of the landmark steps. Today, the modus operandi of the terror outfits has become more sophisticated and conclusive that required scientific and technological approach to tackle them. The NIA's way of functioning is altogether different from its predecessor i.e. ATS, CBI and Special Cell etc. while tackling terror related cases. The NIA knows well that whenever terrorism strikes its victims are from both the communities i.e. majority and minority. Hence, it would be wrong to give a communal or religious color to any terrorist activity. Terrorism has no religion, caste or creed.

Causes, Prevention and Law Concerned With Cyber Child Pornography

One of innocent creature of this universe is children and sexually harassing innocent children under the age of eighteen via internet is called child pornography. It is an alarming cybercrime today. People involved in these acts use animated cartoons, films, videos, images and magazines to satisfy sexual desires. This article describes the types of child pornography, associated risk factors and preventive legal measures adopted in Pakistan and worldwide. Access to internet and uncontrolled usage has led to increased child molestation cases. Paedophile cases in Pakistan led to the formulation of new laws under the United Nations Children's Rights Convention (UNCRC). Role of Federal Investigation Agency (FIA) and Non-government Organizations (NGOs) is also discussed. The Source siteswhere the exchange of porn material occur is dark web, its usage and how law enforcement agencies trying to shut it down are made clear here. The tools and techniques helpful in the investigation of child pornography are briefly discussed.

Causes, Prevention and Law Concerned With Cyber Child Pornography

One of innocent creature of this universe is children and sexually harassing innocent children under the age of eighteen via internet is called child pornography. It is an alarming cybercrime today. People involved in these acts use animated cartoons, films, videos, images and magazines to satisfy sexual desires. This article describes the types of child pornography, associated risk factors and preventive legal measures adopted in Pakistan and worldwide. Access to internet and uncontrolled usage has led to increased child molestation cases. Paedophile cases in Pakistan led to the formulation of new laws under the United Nations Children's Rights Convention (UNCRC). Role of Federal Investigation Agency (FIA) and Non-government Organizations (NGOs) is also discussed. The Source siteswhere the exchange of porn material occur is dark web, its usage and how law enforcement agencies trying to shut it down are made clear here. The tools and techniques helpful in the investigation of child pornography are briefly discussed.

Development and validation of a high-performance thin-layer chromatographic method for the simultaneous determination of levamisole and cocaine in seized cocaine sample

Cocaine is the second most illicit drug worldwide. Levamisole, an anthelminthic drug, has been identified as a cocaine adulterant in the United States since the last decade. Now, its presence has increasingly been discovered in street cocaine samples seized in India. Recently, it has been observed in many street cocaine samples seized by investigation agencies in India. Due to the incidence of toxicity caused by this contamination which has been increasing rapidly since 2002, it is important to understand the chemical separation, identification, and quantification of this drug. In the present study, an attempt has been made to develop a new high-performance thin-layer chromatographic (HPTLC) method for the simultaneous discrimination and quantification of levamisole in seized cocaine samples. Chromatography was performed using a pre-coated silica gel aluminum plate as the stationary phase, and the mobile phase cyclohexane—toluene—diethyl amine (75:15:10) was able to discriminate between cocaine hydrochloride and levamisole hydrochloride significantly. Densitometric analysis was performed in the absorbance mode at 230 nm. The linear regression analysis of data for the calibration curve showed good linearity over a concentration range of 100–1200 ng per band and 200–2400 ng per band with a regression value of 0.997 and 0.995 for levamisole hydrochloride and cocaine hydrochloride, respectively. The developed method is used to quantify cocaine content as well as to estimate the concentration of adulterant levamisole. The method was validated according to the International Conference on Harmonization (ICH) guidelines and can be used in the identification and quantification of levamisole and cocaine in seized cocaine samples. The present method is simple, reproducible, and repeatable, which can easily be performed in any laboratory.