Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Passage: I muri i tana whiwhinga i tana Juris Doctor i te 1973 mai i te Whare Wananga o Virginia School of Law, i mahi a Mueller hei kaiwhakawa i te umanga Pillsbury, Madison me Sutro i San Francisco tae noa ki te 1976. I mahi ia mo nga tau 12 i nga tari o te United States Attorney. I mahi tuatahi ia i te tari o te U.S. Attorney mo te Rohe ki te Raki o California i San Francisco, i reira ia i eke ki te rangatira o te wehenga hara, a i te 1982, ka neke ia ki Boston ki te mahi i te tari o te U.S. Attorney mo Massachusetts hei Kaiawhina United States Attorney, i reira ia i tirotirohia ai me te whakawakia i nga tinihanga nui o te tahua, te whakatumatuma me nga take pirau a te iwi, tae atu ki nga raupatu tarukino me nga moni horoi moni a-ao.I muri i tana mahi hei hoa i te umanga ture o Boston o Hill me Barlow, ka hoki a Mueller ki te mahi a te kawanatanga. I te tau 1989, i mahi ia i te Tari Ture o te United States hei kaiawhina ki te Kaituku Kaituku Dick Thornburgh me te mahi hei Kaituku Kaituku Kaituku. Ko James Baker, i mahi tahi ai ia ki ngā take haumaru ā-motu, i kī ia he "whakawhetai ki te Ture me te mana ture".I te tau 1990, ka noho ia hei Kaiāwhina o te Kaituku Kaituku o te United States e tohutohu ana i te United States Department of Justice Criminal Division. I a ia e mahi ana, i tirotiro ia i nga whakawakanga tae atu ki tera o te kaiarahi Panamanian a Manuel Noriega, te Pan Am Flight 103 (Lockerbie bombing) take, me te rangatira o te whanau hara Gambino a John Gotti.I te 1991, i kii ia kei te tirotirohia e te kawanatanga te Bank of Credit and Commerce International (BCCI) mai i te 1986 i roto i te whakaaturanga nui atu i te waa noa. I te tau 1991, i pootihia ia hei hoa o te American College of Trial Lawyers. I te tau 1993, i noho a Mueller hei hoa i Hale me Dorr o Boston, he tohunga ki nga whakawakanga o te hara o te kaakahu ma. I hoki mai ia ki te mahi a te iwi i te tau 1995 hei kaitohutohu matua i te waahanga kohuru o te Tari Kaitohutohu o te United States o te Takiwa o Columbia. I te tau 1998, i tohua a Mueller hei U.S. Attorney mo te Rohe ki te Raki o California, a, i mau i taua tuunga tae noa ki te 2001.  Patai: I hea a Mueller i whiwhi ai i tana Juris Doctor?
Te Whare Wānanga o Virginia School of Law