Picture this
Someone owns a house next door to you
A convicted pedophile needs a place to live
Owner of the house decides to rent to him
Would this upset you?
No, anything goes with Paultards.
The way to protect yourself in that case is to not to live next to rental property.
However, if such an event were to occur, I would investigate, be cautious, warn my kids and take necessary actions if that person acted in a manner that concerned me.
But, I would not advocate laws that dictate to the landlord who he must rent to and who he cannot rent to.