In 1966 he established the law firm Bugge, Arentz-Hansen og Rasmussen (BA-HR) together with Knut Rasmussen and Frederik Moltke Bugge, which became one of Norway's most prestigious law firms. [1 ] [2 ]
Lars Arentz-Hansen is known as an Actor. Some of his work includes Pláž, 22 July, Velký průšvih, Šlápni na to, Operace Arktida, Sofiin svět, Gjengangere, and Pod černou vlajkou.