Abrother assault his sister ,causing bodily injury . the sister calls the police , who determine that the brother needs to go to jail . the police first have to get a judge to sign a warrant before they can arrest the brother

The police don't need a warrant.

Explanation:

If the police suspect a person is committing a crime, the police have power to force entry into a home or property to make an arrest to cause further  harm or nuisance.

answer:

do you think it is fair that you get in trouble because you have you're instagram put and get in trouble. it is your social media not theirs. i am the one who has to be careful. they don't have to take care of me.