I don't want to debate the meaning of the word "common", but given the number of Stingers in use, and their NDA prohibiting disclosure, I think it's naive to as

I don't want to debate the meaning of the word "common", but given the number of Stingers in use, and their NDA prohibiting disclosure, I think it's naive to assume that parallel reconstruction is rare. And yes, that's just my opinion. When the police find a guy carrying $500,000 in his car, do you really think that was random chance? > That statement by itself is clearly false. No the statement is true. Detectives act on hearsay evidence all the time (which is inadmissible). They use everything they know about a suspect to drive an investigation. Inadmissible means only that it can't be presented in court. While a jury must ignore inadmissible evidence, police have no such requirement. Most of their work is outside the courtroom, the trial is just the presentation at the end.