Me. Stat. tit. 16 § 648
Except as provided in this subchapter, a government entity may not obtain location information without a valid warrant issued by a duly authorized justice, judge or justice of the peace using procedures established pursuant to Title 15, section 55 or 56. [2017, c. 144, §5(AMD).]
A justice, judge or justice of the peace may issue a search warrant for the location information of an electronic device pursuant to this section for a period of time necessary to achieve the objective of the authorization, but in any case the warrant is not valid for more than 14 days after the issuance. A justice, judge or justice of the peace may grant an extension of a warrant upon a finding of continuing probable cause and a finding that the extension is necessary to achieve the objective of the authorization. An extension may not exceed 30 days. [2017, c. 144, §5(AMD).]
This subchapter does not apply to tracking devices, as defined in section 638, placed by law enforcement officers. [2019, c. 489, §13(NEW).]
16 M.R.S. § 648