There is money in private prisons.
This is the drive behind the policy.
Also, mass surveillance is a cash cow.
We are all future detainees, it's only a matter of time.

Where I live it is a criminal act to sit, stand or lay in public places. But paying someone too little to afford rent is not a crime.

This is class war, and once the "illegal" class of workers has been removed, those jobs will be "given" to debtors. The dystopia is still in it's early stages, most people cannot imagine what is coming down the line.