Please help

[DistressedMummy]

I don't know if I'm posting this in the right section. I've never posted before. I feel suicidal. I just found out something about my first born son.
He has been lying, stealing, using drugs.
I have four children and I thought I had reason to be proud of them. My eldest has a good job and is saving to go to pilot school, my second son is a doctor, my third son is a talented film maker, my daughter is an actress.
Please tell me what to do.
I can't believe this has happened to me.

I sound really selfish, I know....I'm just in total shock

I can't advise as I'm in the same boat with my daughter, but I can empathise - it's the most horrific feeling isn't it?

It's beyond anything I've ever experienced

I know, likewise.
In my case she's an adult, so I can't force anything on her. When she's here I keep keys, money, bankcards etc in my pocket.
So far she's pawned my phone, a tablet and some jewellery.. I found the pawn tickets, wanted her to come with me to get them back but she refused and dashed off to the shop to tell them not to allow anyone else to collect the things, so it seems the only way to get them back is to go via the police, which I'm reluctant to do but on the other hand I'm thinking it might be the shock that she needs