Final answer:
Article 4 of the Canons of Police Ethics relates to the Fourth Amendment, which protects against unreasonable searches and seizures.
Step-by-step explanation:
Article 4 of the Canons of Police Ethics pertains to the Fourth Amendment of the United States Constitution. The Fourth Amendment protects the right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures. It requires that warrants must be supported by probable cause and specifically describe the place to be searched and the items to be seized.