A park ranger, "observed subject Walters grab his genitals while talking to a person in his vehicle..." the citation said. The incident reportedly occurred in Forest Park at McKinley and Concourse Drive.
Walters' lawyer, Neil Bruntrager of Bruntrager and Billings law firm, requested the trial and continuance from the May 8 court date.
Attorneys typically request trials when they plan to enter a not-guilty plea for their clients, Court Administrator Cathy Ruggeri-Rea said.
Walters was scheduled to appear in front of Judge James Wahl at the St. Louis municipal courthouse on Tuesday afternoon. Wahl also is expected to preside over the July 26 trial.
Bruntrager said that his client is innocent of any charges filed against him.
"I firmly believe that he'll be completely vindicated in this matter," said Bruntrager in an April 24 article. Recent calls to the attorney have not been immediately returned.
Walters was placed on paid administrative leave March 26. District officials said Walters will remain on leave until the investigation is complete.
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