One could easily fathom not just overt authorities but also covert authorities wishing to use similar technology.
Clearly an intelligence agency doesn't want the lower level police leaking detections of higher importance, so best to differentiate say DNA for cops and RNA for intelligence services, so that the pragmatic tools and workflows of police won't result in uncleared personnel figuring out things they aren't cleared for.
That wouldn't explain quasi biological statistics as opposed to white noise random sequences, which would suffice for tracking, but also would blow the cover as a man-made genome...
I.e. if RNA sprays had been reserved by some power bloc for intelligence service purposes (DNA sprays for usual law enforcement), then there is a clear incentive to have the secret pseudorandom sequences at least mimic plausible biology sequences, an adversary bloc detecting such a tracker might believe the sequence to be of biological origin, and intelligence associated academics would publish it: revealing both the detection by an adversary bloc and the academic's employment by intelligence circles...
For example: https://www.selectadna.co.uk/dna-tagging-spray
One could easily fathom not just overt authorities but also covert authorities wishing to use similar technology.
Clearly an intelligence agency doesn't want the lower level police leaking detections of higher importance, so best to differentiate say DNA for cops and RNA for intelligence services, so that the pragmatic tools and workflows of police won't result in uncleared personnel figuring out things they aren't cleared for.
That wouldn't explain quasi biological statistics as opposed to white noise random sequences, which would suffice for tracking, but also would blow the cover as a man-made genome...
I.e. if RNA sprays had been reserved by some power bloc for intelligence service purposes (DNA sprays for usual law enforcement), then there is a clear incentive to have the secret pseudorandom sequences at least mimic plausible biology sequences, an adversary bloc detecting such a tracker might believe the sequence to be of biological origin, and intelligence associated academics would publish it: revealing both the detection by an adversary bloc and the academic's employment by intelligence circles...