After several weeks of questioning the Government's actions in the trial of 14 defendants, the judge on Monday dismissed the cases of 7 of them.
The trial of 17 defendants for conspiracy started a mere four months later.
It was the third month in the trial of six defendants accused of being members of a violent organized crime group called the Corporation.
Mr. Smyth said he believed that it was Harris County's first simultaneous trials of three defendants.
Human Rights Watch said that there were "serious violations of due process" at the trials of 21 defendants relating to July protests.
An infamous 19th-century murder in Fort Indiantown Gap resulted in a trial of six defendants who all had blue eyes.
The trial of Mr. Stanfa, 54, and seven other defendants began on Sept. 18.
A trial of 123 defendants held on June 28, 1912, took place without evidence and confessions were extracted under torture.
And prosecutors should "make an especially compelling justification for a joint trial of more than 10 defendants," the appeals court said.
The trial of Miklós Hagyó and 14 other defendants is currently underway.