Makes me think of mandatory ID tattoos. I realize that's a leap, but that is what first came to mind.
"The use of UV ink may be of less consolation to those patients who associate tattoos with their use as involuntary identifiers. In the holocaust, identification tattoos reminded prisoners no longer controlled their own bodies. Giving the patient a choice of whether or not to use micropigmentation, the type of encoding to use, and some control over the process that generates the encoding should help to address these concerns."