Umm...well, usually things stay pretty civilized here...but living in a podunk Texas county that has ended up with the biggest drug corridor in the country going through it...as long as anything is illegal, it will be smuggled, and the people involved with it will be BAD.
I really think the least a prosecutor or cop is worried about is that crime might drop so low they'd be out of a job -- do you have any idea how LITTLE a prosecutor or a judge is paid relative to an attorney in private practice? And then they have those little Mexican cartel %&% put bountys out on them, on top of being paid about half of an average salary.
The war on drugs did not make the smugglers violent, or criminal -- the possibility of large profits with little investment, and an amoral mentality created them. If drugs were legal, they'd switch toward human smuggling, or weapons, or kidnapping or extortion, or something else.