He was born in Peabody, Massachusetts to James and Pitsa Liacos, Greek immigrants. His father started out in the mills of New Hampshire and the leather factories of Peabody, but eventually became the first Greek-born lawyer in Massachusetts after working his way through law school in a leather factory.
Liacos graduated from high school at 16, earned his undergraduate degree from Boston University in 1950, and was admitted to the bar in 1952.
Liacos had a sister, Katherine Liacos Izzo, herself a lawyer whom Governor Michael Dukakis appointed to the state Superior Court. By the following year, he had earned a master"s degree in law from Harvard University. He taught for over two decades at Boston University.
Foreign three years in the mid-1950s, he served in the United States Air Force Judge Advocate General Corps.
He then returned to the BU law faculty in 1957 and the family practice, Liacos & Liacos, where he spent some 25 years. Liacos was still a professor when Governor Michael Dukakis named him to the Supreme Judicial Court (SJC) in 1976.
He wrote a number of scholarly works, mainly in the area of criminal law, among them the definitive Handbook of Massachusetts Evidence. His written court decisions (of which there were 800) reflected a concern for individual rights – he was the court"s liberal anchor and defender of civil liberties.
Dukakis named him Chief Justice in 1989.
During his seven years as Chief Justice, the court found that the death penalty violated the Massachusetts Constitution and broadened protections for women seeking abortions and for defendants" rights against search and seizure. Liacos retired three years before the mandatory retirement age of 70. At the time, he said he wanted to spend more time with his family.
He also wanted to give his successor, Justice Herbert P. Wilkins, an easier transition in the face of three retirements scheduled before 2000.
He died at Massachusetts General Hospital.
In 1998, he was sworn in as a member of the State Ethics Commission.
