Maryland Code, Business Occupations and Professions § 13-102

(1) to an officer or employee of any unit of the United States, of any state, or of any county, municipal corporation, or other political subdivision of any state, while performing a duty of the office or employment;

(2) to a lawyer, while performing any activity that relates to the lawyer's regular practice of law in the State;

(3) to an individual who, as a regular part-time or full-time employee of a lawyer, provides services that relate to the lawyer's regular practice of law in the State;

(4) to an individual who is regularly and exclusively employed as an investigator or in any other capacity by a person who is not engaged in the business of providing private detective services, while performing any duty of the employment;

(5) to a person who is licensed to engage in insurance business of any kind in the State, while conducting that business, or to any employee or licensed agent of that person, while conducting that business;

(6) to an independent insurance adjuster, while conducting the business of an insurance adjuster;

(7) to a person while conducting an investigation solely for the person's own account; or

(8) to a special police officer appointed and while performing under Title 3, Subtitle 3 of the Public Safety Article or § 16-16 of the Code of Public Local Laws of Baltimore City.