The Seventh Amendment requires that the civil jury trial right be "preserved" in "Suits at common law. IN THE SUPREME COURT OF TEXAS. Misc.The Court ruled that the Seventh Amendment requires a jury to determine whether an entity is liable for civil penalties under the Clean Water Act. In civil trials, both the plaintiff and the defendant have the constitutional right to a jury trial. A written demand for a jury must be filed no later than 14 days before the date a case is set for trial. I want to learn about civil litigation in Texas. "56 The Supreme Court has ruled that the Seventh Amendment right to jury trial in civil cases is not incorporated. Effective January 1, 2014, the Supreme Court of Texas mandated that all attorneys must electronically file court documents in the Harris County Civil Courts. Instructing the Jury. The Civil and Family Courts are located at 1700 Guadalupe St, Austin, TX 78701.