A magistrate has the same judicial immunity as a district judge.
Tex. Gov't Code § 54.2404
JUDICIAL IMMUNITY
Added by Acts 2019, 86th Leg., R.S., Ch. 606 (S.B. 891), Sec. 5.06, eff
Official source: Texas Constitution and Statutes. Reproduced from public-domain Texas statutes; confirm against the official source for the current text. Not legal advice.