You should definitely tell somebody. Like a counselor or somebody else like that. And yes, I believe you could call the police for something like that especially if it is physical abuse.
Explanation:
tip:
Something like this should absolutely NOT be ignored, so if a girl or boy tells you that they are being abused for real, don't take it lightly. You need to tell someone. And yeah it might be hard, but abuse is not a joke, it really messes with people. So if this is happening to them, you really should tell someone.
Clean all minor cuts and injuries that break the skin (like blisters and scrapes) with soap and water. Clean and cover draining or open wounds with clean, dry bandages until they heal.
