> Did the shooter say she was "in ISIS", or that she pledged allegiance to the leader? Either one would seem to constitute probable cause for an association. O

> Did the shooter say she was "in ISIS", or that she pledged allegiance to the leader? Either one would seem to constitute probable cause for an association. Of course we don't know if she was actually in ISIS, or just agreed with their beliefs. But how would we know without conducting further investigation? You seem to be demanding a somewhat unreasonably large burden of proof, when all that is needed in this case is probable cause. Frankly, even if she hadn't verbally declared allegiance to ISIS, I don't think it's a stretch to say there's probable cause for connection to other terrorist groups. The fact that she did say that makes it a slam dunk. > I think a system can function in which some evidence that a search will yield results is required before the search is conducted. I do not think that the evidence must be airtight. We do have such a system. The evidence you're describing is called probable cause, and that's the whole point. I'm not sure of any reasonable definition of probable cause that this situation wouldn't satisfy. Moreover, your objections seem to be in the form of vague misgivings rather than concrete arguments. You haven't precisely described what would constitute sufficient evidence for an investigation, but instead seem to just be saying "there's not enough right now." I think this is what's behind GPs frustrations responding to your posts.