In South Korea, the use of police body-worn cameras has become widespread, but research on this topic still needs to be conducted. This study empirically examined the impact of negative interactions with citizens on support for police body-worn camera usage and perceptions of procedural justice policing. This study collected data by distributing a survey to 172 trainees at the National Police Human Resources Development Institute. The results showed a significant positive (+) relationship between citizen animus and support for body-worn camera usage. However, citizen animus and support for body camera usage did not significantly impact perceptions of procedural justice policing. Finally, the relationship between citizen animus and procedural justice policing, mediated by support for body camera usage, was not statistically significant. Based on these findings, the study discussed ways to verify the expected effects of body-worn cameras.