sentences:  Mark resigned in 1977 following a public disagreement with Jenkins, then Home Secretary, over the Police Act 1976 and the introduction of an independent police complaints body, which Mark considered would undermine police discipline and effective investigation.He was awarded the Queen's Police Medal in the 1965 Birthday Honours, knighted in the 1973 New Year Honours, and appointed Knight Grand Cross of the Order of the British Empire (GBE) in the 1977 New Year Honours.He was appointed Knight of the Order of Saint John in 1978.