Responsible for clerical functions requiring discretion and specialized knowledge; prepares material for typing, using independent judgment and initiative; types a variety of materials of considerable complexity, including technical correspondence, forms, reports, numerical and statistical reports from oral direction, rough draft, copy, notes, dictating equipment, or other source; reviews and edits outgoing materials for clarity, correct spelling, punctuation and grammar, proper form, and completeness; composes routine correspondence and reports; sets up and maintains complex filing systems; assists the public with technical questions; explains difficult procedures and interprets regulations; reviews documents for accuracy, including invoices, purchase orders, payroll and personnel materials; schedules invoices for payment within the appropriate discount period; receives money; prepares and issues receipts; makes emergency purchases; maintains inventory of supplies; operates a computer terminal to enter, modify or retrieve data; operate calculator, word processor and other office equipment; may assist Police in booking, searching, and transporting prisoners. Ability to operate a variety of office equipment, including calculator, word processor, and computer terminal; understand and explain a wide variety of technical procedures and policies; organize and maintain record keeping systems; establish and maintain effective working relationships with supervisors, fellow employees, and the public.