I am guessing authorities are asking people for DNA samples.

But can't do anything if refused.

I would never give my DNA in case someone decided to put some of my hairs at a crime scene.

its not the first time this has been used, they did it on an island after a woman was murdered, tested heaps of locals but it didnt work then and its unlikely to work now.

its just a cheap stunt by police.

look we are doing something.