...of error is available to a party to the suit or to one whose privity of estate, title or interest appears from the record of the cause. Smith and Jones v. Gerlach, 2 Tex. 424 (1847). In the context of the problem before us, I would not restrict the concept of...., 424, and has never been since questioned, 'that this writ can only issue at the instance of a party to the suit, or of one whose privity of estate, title or interest appears from the record of the cause...procedure without unnecessary involvement in procedural quirks, complications and limitations. The concept of the petitioner, who was not a party to the trial court proceedings making himself a party to the...