security guards on patrol warning text sign label, , black, yellow, large detailed macro closeup

activity alert area arrest authorized being black cctv closeup customisable danger detailed deter detering enter face facilities facility fines guard guards hour human isolated label large macro note notice only other patrol person personnel persons profile property prosecuted protected recorded restricted security sign signs subject surveillance text theft trespasser trespassers trespassing triangle unauthorised under unwanted video warning watch watched white yellow zone