I worked with FBI agents for most of my career (as well as Secret Service, Customs Enforcement, NIS, OSI, RCMP, PGR and dozens of other alphabet agencies). Your friend is spot on re the FBI overall operational capabilities (this doesn’t include the FBI SWAT or other operational specific investigators). The FBI recruits educated applicants with accounting, law, technical, etc., specific expertise to enhance investigations into criminal activity. The key word is “investigations”…. The Bu is an “investigative” agency. Period and yes, the rule (not the exception) is to ensure the Bu is credited at the conclusion of every investigation be it bank robbery or fraud, kidnapping over state lines, interstate thefts at the higher thresholds, etc. The stories/experiences with the Bu are mostly head scratchers. By the way, local LEA are not the only groups who see the Bu always attempting to take credit… every “non-Bu” agent I have ever worked with had similar feelings towards getting credit regardless of whether due or not. Suits with badges…