Okay, totally unrelated to AC, but this looks like the proper section to put it in.
What do you do in your practice about patients who have been getting narcotics from you, and several other providers, in three different counties, using several pharmacies?
One pharmacy recommended I report this to our local police. Do you ever do that?
In the past, as in this case, I usually notify the other physicians (or they notify me) and pharmacies involved and discharge the patient from my practice.
Yes, I have contracts in place, random drug screening and the like. I've also just ordered tamper resistant script paper. In this case, we are all fairly sure the patient was selling as he picked up brand name medications and paid cash.

So...do you contact the police? What about confidentiality?
Barbara