actually investigative work
no subpoena's, no user profile aggregators
its the most acceptable use of public resources and is hardly news in 2020 but its nice to read that public servants will do some basic stuff like this.
It if were parallel construction, the intent would be for the forward construction to seem more logical to you.
In this case, you could be proving the efficacy of the tactic.
Yeah I agree that when parallel construction happens they make the parallel case a logical one. But that involves making a parallel case. You're saying that the shirt -> Etsy -> Poshmark -> Linkedin chain was not created in that order and was created in some other order. I don't see how it's logical that it could be created in some other order, even with illegal evidence.