Specifying that a petition for emergency evaluation is effective for 5 days after being endorsed by a certain court; authorizing a court, on a certain motion and on certain findings, to extend a petition for up to 5 days at a time, not to exceed a total of 30 days from the date the petition was endorsed by the court; and authorizing peace officers to act in accordance with best practices on how to take an emergency evaluee to an emergency facility and, if deemed necessary, to be joined by a mobile crisis team when executing a petition.