If you dreamed about knives and police: You may have to make requests for some things to be delayed or terminated, You may be inclined to take sudden or hard decisions. To see a knife and a police officer in a dream indicates that no crime will go unpunished, not to escape from justice, to be happy and to good developments. In the dream, the knife and the police are sometimes attributed to fear and sadness, sometimes to bad developments and low morale, to fall into an unfair position while being right.