The ForceCast Investigative Report (sometimes called The Jimmy Mac Investigative Report) was a recurring segment on The Weekly ForceCast. When confusion about a Star Wars topic arose on the show, Jimmy Mac sometimes chose to conduct one of these reports. The segment opened with an audio clip, which was followed by McInerney saying, "Jimmy Mac here from the ForceCast Investigative Report team."

Investigative reports, which were conducted infrequently, usually involved McInerney talking to primary and secondary sources or consulting print and digital reference material.