A man suing the Davenport Police Department over its handling of a traffic stop in 2010 was arrested over the weekend after a stabbing in a local nightclub.

Calvin D. Hammock, 42, 1911 Valley Drive, Davenport, is charged with going armed with intent and willful injury causing bodily injury, both Class D felonies that are punishable by up to five years in prison each upon conviction.

Police were dispatched to The Chorus Line, 4128 N. Brady St., Davenport, at 11:44 p.m. Saturday for a disturbance and determined that Hammock had entered the establishment with a knife and stabbed a person on the victim’s left upper back, according to Hammock’s arrest affidavit.

The victim’s condition is unknown. The injury resulted in the loss of a large amount of blood, the affidavit stated.

Hammock has filed a lawsuit in U.S. District Court, Davenport, claiming officers fondled his genitals and buttocks during an interrogation Aug. 6, 2010, at the Davenport Police Department following a traffic stop. He also uses the word “attack” in describing the incident at the station.

The defendants include eight police officers, Police Chief Frank Donchez, the city of Davenport and the Davenport Police Department. A defendants’ answer filed Oct. 31 denies officers fondled Hammock or attacked him. Motions to dismiss also have been filed.

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Hammock also claims he was “falsely arrested” on “fabricated” charges that day, a claim the defendants deny.

He was arrested and charged at the time with two felony counts of possession of a controlled substance. Both counts were dismissed a year later by Scott County District Judge Mark Cleve, according to court records.

Davenport Assistant Police Chief Don Schaeffer, the department’s public information officer, could not be reached Monday for comment.

Davenport city attorney Tom Warner also couldn’t be reached for comment.