RSA 311:7-b Investigation by Attorney General.

I. The attorney general may investigate any complaint of unauthorized practice of the law and the attorney general, or a deputy attorney general or an assistant attorney general designated by the attorney general, may subpoena witnesses, compel their attendance, examine them under oath, and require the production of any relevant documentary evidence.
II. The laws relating to the attendance of witnesses in civil actions and the payment of their fees and expenses to those witnesses shall apply to investigations made by the attorney general.
III. If a person fails or refuses to obey a subpoena or to testify as to any material matter regarding which the person may be interrogated, the superior court, upon application by the attorney general, may issue to the person an order