The three witches badge is that of IS 9 (WEA). Intelligence School 9 (IS9). being a cover designation for MI 9; the section of Military Intelligence formed to assist evaders and escaping POWs. WEA stands for Western European Area, other areas were ME (Middle East) and CMF (Mediterranean).
IS 9 (WEA)was raised in late 1943 and was part of SHAEF.