In addition to any duties set forth elsewhere, the Department shall provide: budget and fiscal review, analysis, research, studies, and reports; legislative drafting and statutory revision services; legal research, review, analysis, studies, and reports; general research and policy analysis; fiscal/compliance, financial statement, and performance audits of units of the State government; legislative research, legislative document and material collection and preservation, and other library services; public information services about legislative activities; document preparation and publication services; legislative information systems maintenance, development, and support; and administrative support services for the Department and, where appropriate, for the General Assembly relating to finance, personnel, distribution, telecommunications, printing and copying, supplies, housekeeping, and maintenance.