When investigators find evidentiary items that aren't specified in a warrant or under probable cause, what type of doctrine applies

Answer: The Plain view doctrine.

Explanation: The plain view doctrine applies when investigators find evidentiary items that aren't specified in a warrant or under probable cause.

The plain view doctrine is a concept in criminal law that allows a law enforcement officer to make a search and seizure without obtaining a search warrant if evidence of criminal activity or the product of a crime can be seen without entry or search.