Search warrant applications must be supported by a written affidavit signed under oath, a signed statement attested to under oath, or by a written statement signed under penalty of perjury pursuant to Minnesota Statutes, section 358.116. The judge to whom a search warrant application is submitted has the discretion not to administer an oath to the applicant if the affidavit in support of the search-warrant application was signed under oath and notarized by a notarial officer pursuant to Minnesota Statutes Chapter 358, or signed under penalty of perjury pursuant to Minnesota Statutes, section 358.116.
Minn. R. Crim. P. 37.01