No you're not worried about your son.
If you were you would have called social services, or put in an application for residency to the court.
You sound more obsessed with what she's up to, she's single and can shag who she likes.
And the fact that you're bringing hair and nails, and the fact you pay for it, into it says everything.
Police don't arrest men for not liking their partner looking nice I'm afraid.
If you're going to concoct a story to make her look bad then don't start off by using every common tactic in the bitter ex handbook.
Don't approve of her babysitters.
She got you arrested for nothing.
She was 'spotted' somewhere you don't think she should be.
All you're doing is simply worrying about your child being with such a terrible mum, but you're not actually doing anything to protect him.
It's like a script at this point.