In the administration of the laws and rules relative to motor vehicles, and to the drivers and the driving thereof, the director may summon witnesses in behalf of the state, and may administer oaths and take testimony. He may also cause depositions to be taken, and may order the production of books, papers, agreements and documents.
RSA 260:13
1911, 133:23. 1921, 119:22. PL 102 :26. RL 118:28. RSA 262:33. 1981, 146:1, eff. Jan. 1, 1982.