Moses Garcia faces a terroristic threat charge, and Acting Police Chief Jesus Mancillas is charged with interfering with public duties.
WILMER, Texas — Two Wilmer city officials were arrested and booked into the Dallas County Jail on Monday, according to jail records.
Wilmer City Council Member Moses Garcia was charged with making a terroristic threat to cause fear, while Acting Police Chief Jesus Mancillas was charged with interfering with public duties. Both have since been released on bond.
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An arrest warrant affidavit obtained by WFAA sheds new light on what allegedly led to both arrests.
According to the affidavit, surveillance footage from a gas station captured Garcia getting into a heated argument with another man, during which Garcia allegedly made a threatening gesture toward him. Witnesses told police Garcia used a racial slur and made references to his authority as a city official during the confrontation. Investigators say they believe Garcia was intoxicated at the time.
The affidavit also details the circumstances surrounding Mancillas’ arrest. While investigators were retrieving surveillance footage from the gas station, Mancillas — who was out of uniform — approached officers and demanded they hand over the footage, saying he would personally handle the investigation. He then sent an email to the Criminal Investigations Division stating he would be taking charge of the case and that any new evidence would have to go directly through him.
Investigators wrote in the affidavit that Mancillas’ actions prevented the CID team from carrying out its assigned duties — the basis for the interfering with public duties charge.
In a statement Monday, Interim City Administrator Frank Posada said he was made aware of both arrests and addressed each separately.
Regarding Garcia, who was elected to the city council in May 2026, Posada says the city will not comment further until authorities complete their work.
“Because this is an ongoing legal matter, it would be inappropriate for the City to speculate or comment further on the facts until the appropriate authorities have completed their work,” Posada said.
Regarding Mancillas, Posada said the acting chief had been appointed at his request last week to provide leadership and operational oversight for the Wilmer Police Department while a separate administrative matter involving the police captain was underway.
“I had no knowledge that the Wilmer Police Department was contemplating or carrying out an arrest involving Mr. Mancillas,” Posada said. “He was assisting the City of Wilmer at my request, and I am disappointed by what has occurred.”
Posada said he has consulted with the city attorney for legal guidance and pledged the city’s full cooperation with law enforcement as the investigation continues.