close up photo of the safety tape running across it with a red plastic rope underneath

tape warning police sign crime yellow security law scene criminal ribbon danger line evidence investigation caution cross urban zone background barrier accident symbol forbidden restricted protection vector murder area detective attention black design violence cordon safety construction isolated banner border stop emergency barricade csi boundary forensic risk death forbid stripe justice 911 dangerous forensics homicide investigate police work safe incident secure mystery restriction cops fbi restrict caution crossing prohibit arrest siren fire people quarantine lockdown trespassing protect