Question: reasonable ground for believing that a person should be arrested or searched
Answer: Reasonable suspicion is a legal standard of proof in United States law that is less than probable cause , the legal standard for arrests and warrants , but more than an `` inchoate and unparticularized suspicion or ' hunch ' '' ; it must be based on `` specific and articulable facts '' , `` taken together with rational inferences from those facts '' , and the suspicion must be associated with the specific individual .