It is still incredibly expensive to record a complete genome for one individual. DNA ‘fingerprinting’ is only a small part ~ http://dnafingerprinting19.tripod.com/id1.html
My point is, if they take a swab and then freeze it, they have your DNA and can use it any time they like.
Lets say for instance your daughter happens to have some trait that is special. She goes to an abortion clinic and does some simple protesting. Then she gets rounded up by the police and taken to the station.
There she gets swabbed. And yes, they only process the sample now for identification.
But later on, someone realizes your daughter has eyesight that allows her to see twice as good as others in dim light.
This is determined to be a great trait. Now there’s a sample out there that can be purchased or even requisitioned from a government agency.
I’m sure there are other traits that would be desired.
Is it really something we should be complacent about, letting the government have a sample of our bodily fluids to use as they see fit?
At the very least, a person should have to be convicted of a felony before they could take their DNA.