Criminology and Criminal Justice Minor The criminology and criminal justice (CCJ) minor provides an overview of the study of crime and criminal justice systems. CCJ Minor Requirements A student minoring in CCJ must complete 24 credits using the guidelines described below. 12 additional CJFS elective credits. Students must complete 12 additional CJFS elective credits. At least 8 credits must be CJFS 37xx or above. CJFS 34xx, CJFS 36xx, and CJFS 3985 courses may not be used towards a CCJ minor.