The Committee on District Courts established in § 16.1-69.33 shall, subject to the provision of § 16.1-69.37, establish guidelines and determine the necessity for the employment of substitute judges, clerks, deputy clerks and all other personnel of the district courts and authorize the employment of such personnel by the courts. For purposes of this chapter, the term “personnel,” as related to the courts, shall not include probation officers and other social service officers of a juvenile and domestic relations district court. The Executive Secretary of the Supreme Court shall obtain pertinent personnel policies of local units of government as to personnel of courts not of record who become employees of district courts pursuant to this chapter, and he shall assist the Committee in the performance of its duties. The Committee may receive the advice and recommendations of the Executive Secretary with respect to authorization of personnel for the district courts, job classifications, salary scales, vacation and sick leave and related personnel matters. The Committee may authorize the appointment of any personnel to serve one or more district courts within any district and in addition may authorize the clerk and deputy clerks of the circuit court of a political subdivision to serve as clerk and deputy clerks of one or more district courts within the political subdivision.