In this chapter, the following terms have the meanings indicated. Terms Defined. “Act” means State Government Article, §§10-611—10-630, Annotated Code of Maryland. “Applicant” means a person requesting disclosure of public records. “Department” means the Department of State Police. “Custodian” means an authorized person employed by the Department having personal custody and control of public records of the Department. “Official custodian” means the person who is responsible for the maintenance, care, and keeping of the public records of the Department. Unless otherwise provided by law, the Department head is the official custodian of the Department's records. “Person” means and includes a person, corporation, partnership, firm, association, or government agency. Public Records. “Public records” means all paper, correspondence, forms, books, photographs, photostats, films, microfilms, sound recordings, maps, drawings, or other written documents, regardless of physical form or characteristics. “Public records” includes all copies made or received by the Department in connection with the transaction of public business and includes the salaries of all employees of the Department. “Public records” does not mean sociological data, as defined in this regulation. “Secretary” means the Secretary of State Police. “Sociological data” means any of the following information concerning a person about whom a record is maintained by the Department of State Police: Social Security number; Personal address; Personal phone number; Any information obtained by a personal history investigation; Any information obtained through a doctor's examination; Any score from a GED certificate; Any transcript or information obtained from a high school, college, or other approved educational institution; and Any information regarding marital status or dependents. “Working day” means a day other than Saturday, Sunday, or a State holiday. Written Documents. “Written documents” means all books, papers, maps, photographs, cards, tapes, recordings, computerized records, and other documentary materials, regardless of physical form or characteristics. “Written documents” does not mean sociological data, as defined in this regulation.