Laws started his career as a zoologist on the
Falkland Islands Dependencies Survey in 1947, where he investigated the ecology of
elephant seals in the
South Orkney Islands and
South Georgia. These formed the subject of his 1953 Cambridge PhD. After spending a season as a whaling inspector, he joined the national
Institute of Oceanography (1955–61) where he studied
great whales and
elephant seals. Laws returned to Cambridge in 1968 to resume his Antarctic research. In 1969, he became Head of the Life Sciences Division of the British Antarctic Survey. He succeeded
Vivian Fuchs as BAS Director in 1973, a post he held until retirement in May 1987. He was
Master of
St Edmund's College, Cambridge, from 1985 until 1996. He was a member of the Scientific Committee of the
International Whaling Commission. ==Awards and honours==