[jrazavian]

Generally, you will find that the difference in 'demeanor' for campus police is due to the flow of money. For city, county, and state police... fines and fees generally flow back to their respective coffers. Campus police (technically state agencies) on the other hand (generally) have budgets appropriated by the state regardless of revenue generation. This is why you will often hear stories of a drunken college student being escorted home instead of arrested; there is no financial interest in having them arrested.

Edits: grammar