According to an official news release, Arizona governor Doug Ducey on 25 April 2022 signed into law H.B 2159, a bill introduced by Representative John Kavanagh that withdraws authorization for the use of polygraphs in law enforcement internal investigations. Kavanagh, a Republican representing Arizona’s 23rd district, previously worked as a police officer with the Port Authority of New York and New Jersey.
The prohibition of the use of polygraphs in law enforcement internal investigations is a sound policy that respects science and protects due process. It should be noted, however, that pre-employment polygraph screening is widely required by law enforcement agencies in Arizona. In view of polygraphy’s complete lack of scientific underpinnings, this arbitrary and capricious practice should also be outlawed (as it long has been in Massachusetts, Michigan, Minnesota, New Jersey, and Oregon).