(a) "Private investigator" means any person who engages in the business of private investigation or the business of private security services as an individual, an employee, a partner or an officer of a corporation.
(b) "Business of private investigation" and "business of private security services" mean, except when performed by one excluded under subsection (c) hereof, engaging in any of the following for hire:
(1) Furnishing watchmen, guards, private patrol officer or other persons whose primary duties are to protect persons or property;
(2) Conducting any investigation relevant to any crime or wrong done or threatened, or to obtain information on the identity, habits, conduct, movements, whereabouts, affiliations, transactions, reputation, credibility or character of any person, or to locate and recover lost or stolen property, or to determine the cause of or responsibility for any libel or slander, or any fire, accident or damage to property, or to secure evidence for use in any legislative, administrative or judicial investigation or proceeding.
(c) "Private investigator", "business of private investigation" and "business of private security services" do not include:
(1) Public officers and employees whose official duties require them to engage in investigatory activities;
(2) Attorneys at law;
(3) Credit bureaus and other persons engaged in the business of obtaining and furnishing financial ratings and personnel information;
(4) Insurers, inspection bureaus and persons acting on their behalf, engaged in investigating matters related to insurance policies or bonds;
(5) Any better business bureau or similar organization or any of its employees while engaged in the maintenance of the quality of business activities relating to consumer sales and services.