ding! excellent advice.

That is the best she can do. At least, she spoke it out, let the 委屈 out. She doesn't deserve to get punished due to a bad police's lie.

If speaking out still can't relieve her 委屈,she can write to police department to complain. At least, the boss of that bad police will warn him/her.In the future
, the bad police might not dare to do the same to other innocent people.