called the cops- possible triggers

My CIL sent me here for reassurance. I've been on bbc for a long time but never used anything but my birth boards which uses my real name.

So, my ail has been living with her creepy sex offender son and has not been near my kids since we found out what he did. Her other son (cils dh) told my dh the situation we co.

My mil (ails sister) told me that when ail babysat my kids she too k photos of them in the bath and immediately afterwards that she keeps on the laptop she shares w ith her creepy son.

I called the cops and am now being attacked from all sides bc "everyone takes bath pics of their kids" and im overreacting. Ail is now being investigated and I am appalled that anyone would defend her. Am I wrong here? i feel sick from this. only dh and cils are supportive.