OMAHA, Neb. (AP) — The Nebraska Supreme Court has upheld the conviction and 30-day jail sentence of a former western Nebraska police chief for obstructing government operations.

Former Sidney Police Chief Byron Wilkinson was convicted after pleading no contest last July. Prosecutors say Wilkinson wrongly kept a citation for disturbing the peace against then-city Public Works Director John Hehnke from being sent to prosecutors.

Hehnke had been ticketed in 2014 for peeking into his ex-girlfriend’s window.

In his appeal, Wilkinson argued — among other things — that the court should not have accepted his no-contest plea, because he had the authority as police chief to thwart the prosecution of Henke.

The high court disagreed Friday, saying there “is no doubt that Wilkinson actually obstructed, impaired, or perverted the governmental function of prosecuting Hehnke’s citation.”