A lot of people don't understand why nabbing narc offenders makes for a rough day at the office for law enforcement.
Most crimes are relatively controllable.
We've got a lot of murders, but cops get on the case and take care of business. Ditto for burglars and embezzlers. Trouble is, drugs are different. No matter how big the latest dope bust, police report another one, even bigger, two weeks later. And far more drugs hit the street than get seized by the men in striped pants, you can be sure.