I agree with your criticisms, but as for the tracking devices themselves being a problem:

They’re a huge problem. It’s easy to pass them off as being “safe” and “necessary” simply because -we- don’t have AIDS/HIV and -we- aren’t sexual criminals, so why worry? The fact is, this is not just a violation of privacy rights for these individuals, but for all of us. If you’re willing to support the chipping of “criminals” (either actual criminals such as registered sex offenders or potential criminals such as the ones targeted by this bill), where are you willing to draw the line? Every one of us is a potential criminal, and these bills will pass every single time by people who say “well, I’M not the criminal this bill targets, so it’s not MY problem.” It very much is your problem.

No, what bothers me about this is how terrifingly vague the standards are. If you’re going to set up a law that targets all members of class A who are also B (in this case, all people in the country with HIV/AIDS who knowingly infect others for whatever reason), you have to – well, should at least – have those standards defined *before* you get the law in place. That way, any potential shortcomings/hideously glaring issues can be dealt with before it becomes a law.