Privacy Protection Act of 1979 - Requires a subpoena duces tecum be issued for matter in control of a person whom there is no probable cause to believe has committed a crime in connection with an investigation or prosecution of such criminal offense by government employees. Permits warrants to be issued to search for or seize such matter only if: (1) there is probable cause to believe that such matter would be destroyed or hidden; (2) there is probable cause to believe that such matter is contraband; or (3) the identity of the possessor of such matter cannot be determined within a reasonable time with reasonable effort.

Makes evidence obtained in violation of this Act inadmissible in any court.

States that governmental units and government employees shall be jointly and severally liable to any person deprived of any right under this Act. Provides for damages to be awarded to such persons.