Facial recognition is not the police's 'go-to' method for identifying criminals. It was only recently debated, but nothing has fully been implemented. In fact, as a follower of some police organizations on Facebook, their go-to method tends to be use whatever picture they can obtain and publicize it and get the public to help identify the person. This is the 'Be On the Look Out' (BOLO) method. It has proven to be fairly helpful.
Also, just because you have a law making it illegal to wear a mask, does not mean criminals will obey that law. Just sayin, if I was a criminal I'm not going to pick and chose what laws I do and do not abide by.
I will be very blunt here, it seems that you are anti-mask. Every time I come up with reasonable explanations and solutions you disregard me and jump to a new problem. It is okay to say you hate masks. You can most definitely hate them. I know personally, I don't like them either. But I can tolerate the few cases in which I am required to wear a mask. In fact, recently, my place of employment issued further guidance on wearing masks. They previously required to have masks worn 100% of the time. Now, they have issued guidelines explain that if you are able to maintain a physical distance of 6 feet or more, you are able to take the mask off. They also said that those working predominately alone would typically not be required to wear a mask unless around others within a 6 feet distance. Within 3 feet we will be required to wear a face shield, but that would be for prolonged interactions that can not avoid physical distancing.