N.M. Stat. § 30-12-6
No order entered under this act [30-12-1 to 30-12-11 NMSA 1978] may authorize or approve the interception of any wire or oral communication for any period longer than is necessary to achieve the objective of the authorization, nor in any event longer than thirty days. Extensions of an order may be granted, but only upon application for an extension, made in accordance with Section 30-12-3 NMSA 1978, and if the court makes the findings required by Section 30-12-4 NMSA 1978. The period of extension shall be no longer than the authorizing judge deems necessary to achieve the purpose for which it was granted, and in no event longer than thirty days. Every order and extension thereof shall contain a provision that the authorization to intercept shall be executed as soon as practicable, shall be conducted in such a way as to minimize the interception under this act and shall terminate upon attainment of the authorized objective, or in any event within thirty days. Whenever an order authorizing interception is entered pursuant to this act, the order may require reports to be made to the judge who issued the order, showing what progress has been made toward achievement of the authorized objective and the need for continued interception. The reports shall be made at such times as the judge may require.
NMS § 30-12-6