What are some common signs of cocaine addiction?

My son’s father used to have a coke habit, but he quit for awhile. We aren’t together and he has little to no contact with my son– I have primary custody of the child. But I’m beginning to suspect that he’s using harder drugs again.

It’s been long enough that I can’t remember what he was like when he was doing cocaine regularly.

He’s very good at hiding the signs. I want to know what to look for before I go to court for full custody of the child.

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