cthia wrote:I would imagine certain strategies such as manually limiting the search parameters via female/male? And of course the parameters can be lowered further by alphabet. Cachet = C.
Of course many would slip through the cracks of these methods. However, full database comparison would continue within the system throughout your stay and automatic APB's issued. Similar to entering Russia and Nazi Germany. Just because your papers are in order now, doesn't mean that they will continue to be, because we are continuing to reference/cross reference.
What about taggers placed into the bloodstream of off-worlders that would facilitate locating an individual if an APB is issued.
shrug
Sure they can try that but then the false positive issue comes back to bite them in the ass. See my numbers back up thread for the problems faced by an amazingly accurate system.
even for a system that will only flag someone as mr Cachat incorrectly 0.001% of the time in an incomming population of 10 million that is 100 flase positives. If you have 10,000 people on your watch list then you end up having to investigate 1 million people entering Sol. This is too many for even the most paranoid of police states to keep track of and this is assuming a technology that is over 5 orders of magnatude more accurate than current tech!
Any identity system has 2 parameters that matter.
False negatives (not identifying a genuine suspect) and flase positives (identifying someone as a suspect who isn't)
Most people (and especially politicians) assume the important factor is false negatives but actually false positives are by far the bigger issue.
to make matters worse these 2 values are inextricably linked by the fundamental maths of these systems in an inverse way.
If you reduce your false negatives you inevitably increase your false positive rate. However if you reduce your false positive rate you inevitably increase your false negative rate.
These are actually concepts originating from epidemiology and medical tests. See https://en.wikipedia.org/wiki/Sensitivi ... pecificity for more of the gory details