DENVER — A former Denver sheriff's division chief who abruptly resigned last year has been charged with theft and tax evasion.

Court records show Michael Than was arrested Thursday after being indicted by a Jefferson County grand jury. The records say the offenses, including filing false tax returns, began in 2010 and continued through 2013. Other details of the case were not immediately available.

When Than resigned from the sheriff's department in December, he held the second-highest-ranking post. He had worked there for more than 21 years and most recently oversaw the city's downtown jail.

Court records say Than posted $10,000 bond and was released from jail. He declined to comment when reached by phone on Monday.