At all at all at all.
Now, we will be faced with handheld fingerptint scanners. Then anyone who even mildly dipleases the every increasing occupying army of “More Policemen On The Beat” – whether they are real or artificial ones – will be able to have his pawprints forcibly taken, and deleted afterwards kept on file for ever and ever.
Truly, the solution must be to force everyone to be a Policeman – whether he will or no. Then we can all spy on each other all the time, for ever, and crime will be a thing of the past, even though there will be more indictable offences than ever before.
What good people we shall have become!