By mere Castration for one person will not be enough,

I have seen some captured birds eyes are closed with a cover the reason is ,if they dont cover eyes of that bird it will harm anything come in front of it,like wise

Castrated people must be paraded in public with out any cover for the castrated area so that every one who see such people will be scared that if any one involved in naty acts will get the same punishment.

Other wise Such crimes will get continued as there are many perverts around.