A Law Against Dirty Old Men

If a man walks on a beach full of sunbathers in their bikinis, gets excited and then tries to molest them, what should be done? Arrest the man for indecent behaviour and may be have his sanity checked or make all the sunbathers cover themselves up from head to toe to so as not to sexually arouse the man? Who should society protect more, women who go about their daily lives minding their own business and not harming any