The hypothesis was that a unit which imparted up-to-date information about shoplifting and its consequences could effect a change in student knowledge and attitudes. The unit was pilot tested with 197 high school students. Student responses on content and attitude tests before and after participation were compared with responses of 179 students in control classes. The unit emphasized general information about shoplifting and shoplifters, consideration of whether shoplifting is right or wrong, and an overview of legal procedures and possible consequences of shoplifting. Statistical analysis of pre- and post-test scores of students in experimental and control groups indicted that students receiving instruction about shoplifting knew considerably more about shoplifting and its consequences. Findings also indicated, however, that there was no statistically significant attitude change regarding shoplifting among students who had participated in the unit. References and data tables are included. (ERIC abstract modified.)