Just for the record, nobody is making the statement that crime does not occur on DART.

It is just a reality that crime occurs everywhere. Granted, DART is the current topic, but if you look into each large agency with a police department you could say the same thing.

Universities have police departments and crimes occur on their campuses.

Hospitals and airports have police departments and they still have crimes. I do agree that the obvious sign of police should deter crime, but today's criminals dont necessarily care that the police are right there.

The fact that crime is everywhere does not make it okay that it occurs at these places, but it is a fact of life.