Concentration camps?

Is this mischevous journalism or does it reflect the actual thinking of our Government and of Judith Collins? 

Dangerous child sex offenders are to be caged indefinitely in purpose-built pens behind the wire, after Cabinet gave the green light to new public protection orders.

This to me is evocative of you know what.

And makes me queasy.

Not that I think dangerous predators should be wandering the streets, au contraire, I don't. 

What I don't understand is why our current sentence of "preventative dentention" doesn't work to keep these types of people contained as it is supposed to do.