Career
He served as the Governor of the Atlantic Provinces Chambers of Commerce from 1958 through 1959. Almost always referred to as "L.G. DesBrisay", in the 1960 New Brunswick general election, he was elected to the Legislative Assembly as the Liberal Party candidate in the Moncton City riding. He was immediately appointed by new Premier Louis Robichaud to the Cabinet as Minister of Finance.
Lestock G. DesBrisay was reelected in 1963 and on July 8 was given the additional responsibility for the Department of Industry, serving as its Minister until April 1, 1968.
He was reelected again in 1967, continuing as Minister of Finance until his government was defeated in the 1970 general election.