Ah, the 1960’s, when hitchhikers would give you a handful of joints to thank you for the ride, or when you visited someone they wouldn’t let you leave without trying their stash. Anyway, I remember cops freely taking goods from friends when we got stopped, they dumped it in their patrol car trunk, and sent us on our way - we knew that no way were they going to turn it in to anyone.
In Dallas a Houston cop visited my brother in law, and those two best friends and me and my wife that the cop had a crush on, went out drinking, at one point he rousted a kid in a park and stole his joint, and then offered it to my wife and I, it was a pretty disgusting display and I can’t remember if he threw it out after we said no, or if he kept it.
By the way, before we had left the house, I asked the cop why he was taking eggs out of the refrigerator of my wife’s parents (we were all in our early 20s, except for my teen wife), he told me the eggs were for egging people.