[3] Hyland resigned from the Assembly in 1961 when he was nominated by Governor Robert B. Meyner to be the president of the New Jersey Board of Public Utilities.

Hyland was one of Meyner's choices to succeed him as the Democratic nominee for Governor of New Jersey in 1961, but he lost the nomination to Richard J.

He returned to public service when Governor Hughes nominated him to be the chairman of the newly created New Jersey State Commission of Investigation.

The Commission succeeded in jailing reputed leaders of organized crime on contempt of court charges for refusing to divulge knowledge of criminal activities.

Goodman named him the legal and musical consultant for his estate, responsible for deciding which previously unreleased recordings were appropriate for release.