Denial of qualified immunity for arrest when tips merely established present location of suspect, and that he matched the description; as tattoos were not examined and a bag of 32 pills was insufficient indication that suspect had taken six during the robbery, arrest was not arguably within reasonable suspicion.
http://media.ca11.uscourts.gov/opinions/pub/files/201711011.pdf
Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.