Mahlon Pitney ( born February 5, 1858 in Morristown, New Jersey, † December 9, 1924 in Washington, DC) was an American lawyer and politician of the Republican Party, which at both a member of the U.S. House of Representatives for New Jersey as well as judges Supreme Court of the United States.
The son of a lawyer studied post-school at Princeton College and graduated in 1879 from. After a subsequent postgraduate study of law, he received in 1882 the admission of lawyers in the state of New Jersey and then worked as a lawyer.
Later, Pitney, who was also a Freemason committed, politically active in the Republican Party and was elected as its candidate in 1895 in the House of Representatives of the United States and represented in this March 4, 1895 to January 10, 1899 the fourth congressional district of New Jersey. After he had resigned his seat in the U.S. House of Representatives, he became in 1899 a member of the New Jersey Senate and was during his membership until 1901 ongoing 1901 last for some time also President of the Senate.
In 1901 he became a judge, appointed to the New Jersey Supreme Court, the Supreme Court of the State of New Jersey and belonged to this until 1908. Subsequently, he became Chancellor ( Chancellor ) of New Jersey.
On May 18, 1912 Mahlon Pitney was appointed as successor to John Marshall Harlan of U.S. President William Howard Taft to be a judge on the United States Supreme Court and this was more than ten years on. During his membership in 1914 it came to a landmark decision to exclude or lock principle in the process of Weeks v. United States. In order to enforce the fundamental rights under the 4th and 5th Amendment to the Constitution of the United States, the Supreme Court had ruled that when investigative bodies by unlawful arrest, improper search or willensbeugende survey methods gain evidence, these are excluded from the recovery in a process ( exclusionary rule ).
On December 31, 1922, he resigned from his office of judge, after he had suffered a stroke.
Mahlon Pitney was the great-grandfather of actor Christopher Reeve.