Tazewell County prosecutors plan to try a former Pekin police officer again on charges he slapped a handcuffed teenager several times after the youth insulted him.

A mistrial was declared when a jury failed to reach a verdict in August in the felony case against Nathan Ujinski, who was dismissed from the department in January in the wake of the charges.

His case returned to court for review on Monday. After it was reset for that purpose to Jan. 12, 2018, his trial prosecutor said he planned to retry Ujinski.

“Right now that’s our stance,” said Assistant State’s Attorney Kevin Johnson.

A felony conviction on charges of aggravated battery in a public place and official misconduct would prevent Ujinski, 39, from resuming his police career. He served 13 years on the Pekin department after four years as a Creve Coeur police officer and a Tazewell County corrections officer.

The 16-year-old youth had been arrested for a fight in July 2016 and was taken to UnityPoint Health-Pekin hospital with minor injuries before his trip to Peoria County’s juvenile detention center.

A police squad car video showed Ujinski slapping the youth in the face after pulling him into the squad’s back seat from behind. The youth, his legs tethered and his wrists cuffed behind his back, had sat down on the seat but refused another officer’s order to swing his legs inside.

After Ujinski pulled him in, the youth twice called him a “little bitch.” Ujinski, leaning over his face, slapped it five times, the video showed.

Johnson told the trial jury the slaps were a rapid “retribution” for the insult. Ujinski testified he was protecting himself from “potentially” getting head-butted by the youth.

The jury deliberated six hours before announcing itself hung. One member later said it was “pretty much split down the middle” on the two versions it heard in the case.

The city Board of Fire and Police Commissioners unanimously voted to dismiss Ujinski from the department after hearing the same versions.

A date for the second trial has not yet been set.

Follow Michael Smothers at Twitter.com/msmotherspekin