What Are the Laws Against This.....

What do you do when someone files a false police report against you? And what are laws against it and penalties? Those are the questions I never thought I'd ever have to find answers to. There are a lot f people who lie and throw fits, and even stoop to filing police reports that are untrue just because they are mad someone doesn't want them anymore. Sounds stupid doesn't it? Yup that is the situation my husband and I are in right now. Here's a question... if you leave someone, go as far as cheating and filing for divorce but wonfering why the guy doesn't want you back after that? Childish but this person went too far and we might not be able to fix this. I'm not sure of the laws against this but this is another for of harassment and I know someone who is getting 3yrs in jail for harassing someone in court and doing the same thing as my husband's ex. What would she do if she had to spend 3yrs behind bars? Throw her fit and try to get her way again like the spoiled brat she is.
When you have witnesses and viable legal proof you are inocent then this should be easy to fix right? Not so. Aparently in this society women are always telling the truth and men get the blame for things they didn't do. Since I am a woman and I don't believe that women should be able to do what they want to people, someone needs to put their foot down and stop people from getting away with things like this! Not everyone has morals, I know this but there hasto be something that can be done to stop and prevent this.