Seems a bit risky to me...
Given the propensity of officialdom to react inappropriately to such things, I rather think that if I had discovered a tin full of someone's dope in MY bag, I'd have dumpstered it pronto without calling anyone, least of all the police. And made sure my fingerprints were well erased into the bargain.
It seems to me that calling the cops to tell them someone else's controlled item is in one's suitcase means running a significant risk of encountering a Keystone Kops reaction and ending up in jail oneself. There's no shortage of examples...


