Hello is it possible to sue someone incase they...

If your inquiry concerns a person filing a false claim, the following information is provided:
You can go to the police station and file a complaint against the person who has accused you of false charges by providing evidence that you are accused of false charges.
If that person is found guilty, the penalty is imprisonment and a fine, or at least one of these.
Here is the legal text of the UAE Penal Code, related to your inquiry:
Article (275): Whoever notifies judicial or administrative authorities of non-existent accidents or hazards, or of a crime knowing that it has not been committed, shall be punished by detention for a period not exceeding six months and by a fine not exceeding three thousand Dirhams, or by one of these two penalties.