Whenever an investigation shall have been ordered to be made pursuant to this chapter, and the governing body of the local unit shall pass a resolution directing its attorney, counsel or other legal representative, as it may choose, to appear and act on its behalf or on the behalf of any of its officials, such attorney may appear at the investigation and on behalf of the local unit or any of its officials, present evidence, examine witnesses and take part in the investigation.
N.J.S. § 40A:5-25