Police investigations involve a thorough examination of a particular crime to obtain evidence and establish the truth behind it. Several synonyms can be used for the term "police investigation." One such term is "criminal investigation," which deals with analyzing, collecting, and interpreting evidence. Another term is "detective work" that refers to the analytical, problem-solving, and crime-solving work performed by detectives. A third synonym is "forensic inquiry" that describes the use of scientific techniques to identify, examine and analyze evidence. Lastly, "law enforcement inquiry" is a term for investigations performed by law enforcement agencies. These synonyms emphasize the role of different types of investigations in the legal system and highlight the importance of thoroughness, accuracy and competence.