Possession and dealing are the things you will be prosecuted for. "Is in a notebook owned by the drug dealer" is probably not the number one enforcement priority.

But it's sure egg on your face if that notebook becomes evidence. Especially if you're famous.

If you're famous and concerned with PR, shouldn't you have people who shop on your behalf, for whatever it may be?

Only if you're famous, concerned with PR, and smart.

I think they call that a "dealer".

When a person only buys drugs for you he's called a 'personal assistant' instead

But once they've busted your dealer and taken a look in his little black notebook, they're more likely to come after you, and that's when you get done for possession.

Yeah - but that's no where near as likely a story as your name getting out and egg on your face.

Cops could usually care less about who's buying drugs for self use (which in many cases isn't even a felony). There are bigger fish to fry.

Do Wall Street execs ever get busted for possession?

They mostly don't have LBBs, they have mobile phones that are only used professionally.