Retention of bio information, function creep and sleepless nights

Comments are invited on the retention of bioinformation !

Do you think that the retention of bioinformation obtained from those not convicted of an offence is vital to meet the needs of law enforcement?

I am researching this area at the moment... and will come up with some scenarios that would if not enlighten you, definitely make you think twice about how law enforcement is becoming subservient to a certain administrative function creep.