He began studying law at the University of Caen in Normandy until the German invasion of France in 1940, when he fled to England.
[2] Subsequently, Frossard fought in the North West Frontier during World War II, earning the rank of captain.
[2] Frossard began his career in public service in 1958 when he was elected as a deputy for St. Peter Port in the States of Guernsey, a position he held for three terms.
He later served as president of the Indian Army Association from 1993 and Grand Master of the Guernsey Freemasons from 1995.
[1] Offering his condolences to the family of Sir Charles, then-Bailiff Richard Collas stated, "Guernsey has lost a most distinguished son, who enjoyed an extraordinary lifetime of remarkable achievements."