QUOTE(&/degradanca. @ May 9 2007, 5:00 AM)

Well, it depends on WHAT type of criminal they are...
PREVENTION:
If they're a robber, set up an alarm in your house, or get a guard dog.
If they're a shoplifter, set up those alarms that sensor whether you've paid for something or not at the entrance/exits of stores.
Other ideas;
- DNA testing/analyis for murderers, to test if they were at the scene of the crime.
- Tracing phone calls to track them down.
- Publicize. For example, Oprah Winfrey had a segment showing the faces of rapists/pedophiles and had ordinary U.S citizens call her hotline if they discovered any of them living near them... they ended up catching quite a few pedophiles living in peoples' neighborhoods.
- Simply put... call the police.
look....
this is not a good example...
the ones that My Cinderella & bitgtichbay wrote were even better and they're weren't a paragraph long.