Below is an excellent training video on youth gangs. The video is a filmed presentation given by Cpl. Mike Rudinski of the Hyattsville (MD) Police Department. The video is more than one hour long.
This training video is worth watching if you deal with youth and/or gangs at all. This isn’t the typical “Bloods wear red” kind of video. There is some very good information on how crime in schools is worsened by No Child Left Behind, why gangs will send fresh blood into a school, how non-LEO staff should respond to strangers on campus and more.