blank yellow black triangle general caution danger warning attention sign, , large detailed vertical signage copy space

alert area arrest attention authorized being black blank caution copy customisable danger deter detering empty enter face facilities facility fines general guard guards hour human isolated large man not note notice only other patrol person personnel persons profile property prosecuted protected recorded restricted security sign signage signs space subject surveillance text theft trespasser trespassers trespassing triangle unauthorised under unwanted vertical video warning watch watched white yellow zone