In 1766, he became Recorder of Dublin.[1] Bradstreet entered the Irish House of Commons as Member of Parliament (MP) for Dublin City in 1776, representing the constituency until 1784,[6] when he was appointed Fourth Justice at the Court of King's Bench (Ireland).[7] Ironicallyn, like several of his colleagues, Bradstreet as a politician had opposed increasing the number of High Court judges: Elrington Ball remarked cynically that an increase in the salary and a guarantee of security of tenure soon convinced him of the error of his ways.