Why not?
It's implants for criminals not for everybody.
People must be careful on what, how, and who they place labels upon others, especially if it leads to having a chip placed in them.
I somewhat like the idea of chips, but mostly dislike it. Technology has a tendency to complicate things more than it simplifies them.
Take for example, the dirty Enron CEO's... extremely vile criminals in suits and ties. They raped a massive percentage of the retiring class through inside trading. It would not serve any purpose to put chips in those men, their crime was done with phones, buttons and stock trades.... those men would use their swindled funds to invest in something like chips for criminals.
Could implants be used for good if evil men operate them? What safeguards could be used?