[taxcontrol]

You are incorrect. Evidence is NOT required, probable cause is NOT required. What is required is “reasonable suspicion” a much lower standard. See Terry vs Ohio

[William Tell]

taxcontrol said: "Evidence is NOT required, ..."

I'm sure that any "articulable reason" which would justify a Terry Stop would be admissible in a court of law and thus would constitute "evidence".

What "reasonable suspicion" would allow you to detain Grisham for poaching?