Defense attorney (BOOBOO: it's often translated as 'lawyer,' but べんごし usually handle criminal cases - murder, arson, etc. Lawsuits or legal procedures related to your visa are either handled by a sort of freelance bureaucrat/notary or by the mob. )
弁 (dialect) + 護 (defend) + 士 (samurai radical)
= 弁護士 (Defense attorney)