Ключевые слова: accident, adults, area, arrest, background, backgrounds, black, boundary, concepts, cordon, crime, criminal, danger, death, detective, discovery, do not cross, dont cross, dont enter, enforcement, exploration, forbidden, forensic, horizontal, ideas, industry, isolated, justice, law, line, medicine, murder, objects, off, officer, old photo pattern, on, paths, people, police, restricted area sign, safety, scene, science, security, sign, surveillance, symbol, tape, time, urban, violence, warning, warning sign, yellow,