First, it's "parallel construction", not "parallel reconstruction".
Second, that term refers to the use of SIGINT (or, more likely, aggregates) collected by intelligence agencies to inform law enforcement but not add to evidence available to prosecutors.
Despite the scary name, Palantir is not in fact a signals intelligence agency.
There is a lot to be concerned about with police department gang member databases, but police departments predict crime routinely. It's a core part of what it means to run a large city police department. You don't allocate patrols uniformly across the city; that makes no sense.
Second, that term refers to the use of SIGINT (or, more likely, aggregates) collected by intelligence agencies to inform law enforcement but not add to evidence available to prosecutors.
Despite the scary name, Palantir is not in fact a signals intelligence agency.
There is a lot to be concerned about with police department gang member databases, but police departments predict crime routinely. It's a core part of what it means to run a large city police department. You don't allocate patrols uniformly across the city; that makes no sense.