Which of the following is NOT a valid application category for a private investigator?

The category labeled as "Apprentice" is not typically recognized as a valid application category for private investigators in most jurisdictions. In the context of private investigation, valid application categories often include roles that hold defined responsibilities and levels of authority within the field.

A journeyman typically refers to someone who has completed an apprenticeship and is fully qualified to work in their trade, which aligns with recognized roles in private investigation. A branch manager is likely responsible for overseeing operations within a specific branch of a private investigation firm, indicating a managerial level of experience and accountability. A qualifying agent is typically a licensed individual designated to supervise and manage the activities of other private investigators within a firm, effectively ensuring compliance with necessary regulations and standards.

In contrast, while an apprentice may imply a training phase that is crucial for skill development in various professions, this category doesn’t correspond to an established level of licensure or professional application in the context of private investigation.