Tex. Government Code § 54.308

(a) Except as limited by an order of referral, a magistrate to whom a case is referred may:

(1) conduct hearings;

(2) hear evidence;

(3) compel production of relevant evidence;

(4) rule on admissibility of evidence;

(5) issue summons for the appearance of witnesses;

(6) examine witnesses;

(7) swear witnesses for hearings;

(8) make findings of fact on evidence;

(9) formulate conclusions of law;

(10) rule on a pretrial motion;

(11) recommend the rulings, orders, or judgment to be made in a case;

(12) regulate proceedings in a hearing; and

(13) do any act and take any measure necessary and proper for the efficient performance of the duties required by the order of referral.

(b) A magistrate may not enter a ruling on any issue of law or fact if that ruling could result in dismissal or require dismissal of a pending criminal prosecution, but the magistrate may make findings, conclusions, and recommendations on those issues.

(c) Except as limited by an order of referral, a magistrate who is appointed by a district court judge and to whom a case is referred may accept a plea of guilty or nolo contendere in a misdemeanor case for a county criminal court. The magistrate shall forward any fee or fine collected for the misdemeanor offense to the county clerk.