In my case, the cops were the only ones who believed me. No one else did. But when she called the cops, they looked around and saw all my stuff strewn around the house, all her stuff in perfect order, and saw the cut on my lip. They didn't even have to ask us anything and they already knew who the perpetrator was. They followed the evidence instead of making assumptions.
The time I called the cops on her, I'm on the phone with the 911 dispatch while blocking the bathroom door. Even after I told the 911 dispatch my wife has a knife in her hand and trying to bust down the bathroom door to get to me, she continues to question whether this is really a life threatening emergency. The police did not take it so lightly. When they arrived, my wife had already put the knife away, and tried to compose herself. But the evidence was all over the house - my stuff slashed and stabbed with a knife, thrown all over the house. Her stuff still in pristine order. The bathroom door with knife marks all over it where she tried to jab the knife through it.
She tried to convince the cops that I made her go berserk with a knife.
RE: Amber Heard brags no one will believe Depp because he's a man.