House Joint Resolution P proposes an amendment to the Michigan Constitution of 1963, specifically amending section 12 of article I. The amendment aims to establish a process for the Michigan Supreme Court to determine whether a state of rebellion or invasion exists, which would justify the suspension of the writ of habeas corpus for public safety reasons. This determination can be initiated by a request from the governor, the attorney general, or through a resolution passed by both chambers of the legislature.

Under the proposed amendment, the Supreme Court is required to make its determination within 48 hours of receiving a request. If approved, this amendment will be submitted to the people of Michigan for a vote during the next general election, allowing citizens to have a say in this significant change to the state's constitutional provisions regarding public safety and civil liberties.