Write a short description of each. Unfortunately there are too many criminals, and far too many offences are caused every day. Beware of pickpockets, too. Bring a newspaper article about a local crime and comment on it. A day in the life of a prisoner.
Prisoners have a lot of time to think.
Discussing the death penalty. Some say it is necessary. Others loathe it. Telling fact from fiction. Now you know a lot about real cops.