<P> 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 . If police additionally have reasonable suspicion that a person so detained is armed and dangerous , they may `` frisk '' the person for weapons , but not for contraband like drugs . Reasonable suspicion is evaluated using the `` reasonable person '' or `` reasonable officer '' standard , in which said person in the same circumstances could reasonably suspect a person has been , is , or is about to be engaged in criminal activity ; it depends upon the totality of circumstances , and can result from a combination of particular facts , even if each is individually innocuous . </P>
<P> 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 . If police additionally have reasonable suspicion that a person so detained is armed and dangerous , they may `` frisk '' the person for weapons , but not for contraband like drugs . Reasonable suspicion is evaluated using the `` reasonable person '' or `` reasonable officer '' standard , in which said person in the same circumstances could reasonably suspect a person has been , is , or is about to be engaged in criminal activity ; it depends upon the totality of circumstances , and can result from a combination of particular facts , even if each is individually innocuous . </P>
reasonable ground for believing that a person should be arrested or searched
reasonable ground for believing that a person should be arrested or searched
Reasonable suspicion
Reasonable suspicion