Perjury

Perjury is making false and unsubstantiated claims under oath.

Those who file false police reports are actually guilty of perjury in law.

This is a felony and carries a threat of substantial jail time in most countries including the United States where prison violence and prison rape are very common, in part due to horrific overcrowding caused by "get tough" measures advocated by Fox News point of view.

Sadly there are some individuals, e.g. Daniel Mayer, who file such perjurious reports, and could well suffer some serious jail time if they don't withdraw their lies before things get serious.