Need some perspective on this

[Spree]

H and I have been separated for about 7 or 8 weeks because I discovered he had an affair.

On confession of the affair, he also confessed to having been taking Ice (Methamphetamines) but he says this stopped in September 2010.

He has a history of clubbing and drug use. He is currently on anti-D's and anxiety medication (which he has admitted to taking extra doses when he feels he needs it). He has also admitted a problem with alcohol addiction.

When he moved out, he said he needed some space to get himself better so he could be a better father to the DCs.

The DCs now spend weekends with him in his tiny apartment.

I have recently discovered that in addition to alcohol abuse, there may be some form of sex addiction (I don't have enough information about this).

I do suspect that now he is living on his own, he is probably smoking cannabis.

We are separated so I cannot stop him doing what he wants but I have DC who spend weekends with him and I am worried that they may find / see something.

I have told him absolutely no drug taking, drinking or smoking when he has DCs and he has agreed but he has also proven himself to be a pathological liar.

Am I within my rights to ask for regular drug tests if he wants to continue to have DCs at the weekends?

Thanks

you could ask him to make sure if he has any porn, that he puts it under password protection.

my dp always puts passwords on anything he wouldnt want the children to come across. You dont have to have everything on your computer suitable for small children, but its reasonable to expect him to take steps so they cant access it.

some drugs stay in the system for weeks/months so a test wouldnt necessarily prove recent drug use

I don't have any evidence he is using cannabis, I am judging by past behaviour and I would suspect now that he is living on his own, he would be able to do it.

I don't think he would do it when kids are with him though.

I am quite torn between not making a fuss and letting him have the children on weekends until we leave and then after that, we won't be living in the same country so anytime he has with the children will probably be quite limited.