Ключевые слова: authority, bar, barricade, barrier, blue, caution, city, concept, conceptual, control, cops, cordon, crime, crimescene, cross, crossing, crowd, csi, dept, diagonal, dirty, do, do not cross, emergency, enforcement, entering, forbidden, frame, law, line, nobody, not, order, outdoors, police, police line, restricted, road, safety, scene, security, sign, street, symbol, trespass, urban, usa, warning, white, wooden,