Step son moved in with us because he wasn't getting on with his mum.
He is 21.
We previously knew he occasionally smoked weed with his dickhead mates when he lived with his mum.
To cut a long story short it wasn't occasionally and we now know it was an issue. I've not got an issue with people partaking in a joint now and again but I have an issue with him doing it as so far it's cost him his home at his mums, a job and he's supposed to be sorting out his driving as he needs a licence before the end of the year for this job it he will lose this job too.
On moving in with us it was made clear that he wasn't doing this whilst living with us. At all.
I have suspected now for a few weeks he's smoking this shit again. Think going out for walks on his own every day. Disappearing for hours with new Mates we've never actually seen.
Well today I went into his room and there was some loose tobacco and crumbs of weed on his chest of drawers.
I have confronted him and he has said it was one joint.
I don't believe him. At all. His dad and me were away Thursday night and ten minutes after leaving we had to go back because I forgot something and when I went in I thought I could smell something but as we were in a rush I left and gave him the benefit of the doubt and didn't say anything to him or his dad.
So I've told him if I catch him again I will tell his dad and he will be getting sent back to his mums.
I don't know what to do. His dad will kill him. His dad has just started a new job and has enough in his plate.
Am I right saying nothing this time?
It will cause absolute murder if I tell him.
Should I say nothing and let him catch him himself because his dad isn't stupid.
I really don't know what to do for the best.