The Salt Lake City Sheriff's office had been investigating "various allegations of suspicious activity" at the household of Zions Bancorp. chief financial officer Dale Gibbons prior to a 911 call he placed Monday because a juvenile girl at his house was comatose.

Mr. Gibbons was arrested Thursday morning on charges of possession of a controlled substance and child abuse with intent, both second-degree felonies. He is being held in the Salt Lake County Metropolitan jail without bail until he goes before the court, said Sergeant Dean Adams Thursday evening.

Zions employees were told Thursday of Mr. Gibbons' arrest with the same statement issued publicly by the banking company. The statement said that Mr. Gibbons had been suspended from his job "pending further investigation."

The Nasdaq stock exchange stopped after-hours trading of Zions' stock for about 40 minutes on Thursday after being notified of the chief financial officer's suspension. Mr. Gibbons has worked at the $24 billion- asset company since 1996, when he joined from First Interstate Bancorp.

The Salt Lake City Sheriff's office had been investigating allegations which later "proved positive," prior to a call placed by Mr. Gibbons to paramedics on Monday to report a female in a comatose state, Sgt Adams said. He said he could not elaborate on the content of the allegations.

When attending to the unnamed juvenile, paramedics found Mr. Gibbons' daughter, who was also unresponsive. The child abuse charges are related to his daughter's subjection to a controlled substance, Sgt Adams said.

"Due to that investigative work prior to, and including the incident, and investigative work after June 11th, we were able to obtain a search warrant," said Sgt. Adams.

On entering Mr. Gibbons' home in Holladay, Utah Thursday morning, Sheriff's deputies found a small amount of methamphetamine, and placed Mr. Gibbons under arrest, said Sgt. Adams.

The Salt Lake City-based banking company has not named anyone to an interim position said Zions spokesman Rob Brough. "At this point we still need to gather details," he said. Mr. Brough said Zions requests drug tests of all new employees.

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