For the first time since the investigation began in July, Mayor Bob Straz offered details at a Palos Heights City Council meeting about investigators peeking into Building Department records and the subsequent firing of the department's head.

Representatives from the Cook County State's Attorney's Office, including an investigator from the Public Integrity Unit, working with local officials were unable to find enough evidence to bring felony charges against former Building Commissioner James Dougherty, Straz said Tuesday night. Instead, Palos Heights police charged the Bolingbrook man with misdemeanor theft. He turned himself in on Friday.

Dougherty is accused of taking $600 in payment for fines and permit fees on July 25 but not turning in the cash or issuing a receipt to the business owner, police said.

Read more: Report: Cash Missing from Palos Heights Building Department

"It became apparent, if nothing else, that there was something wrong with the management in the department," Straz said, addressing the public. "We decided to take it a little further and turn it over to the police department and State's Attorney."

The investigation into Dougherty and the building department began in July. Interviews were conducted over weeks.

Palos Patch detailed the investigation—specifically, the interview conducted by police, an Assistant State's Attorney and an investigator from the State's Attorney's Office's with Dougherty on July 27—in an article last month. The State's Attorney's Office eventually decided they would not charge Dougherty.

Straz said he let the commissioner go because of "deficiencies in his management and unprofessional behavior. City officials are now conducting an examination of how the department conducts its affairs.

"There's an overall review of the flow of money and work in the department," Straz said. He said some procedures already have changed. Cash will now only be handled at the front desk inside City Hall.

City Building Inspector William Hayes has been appointed interim Building Commissioner for the time being. Hayes was identified in a Palos Park police report as the one who brought to their attention a discrepancy in department records regarding cash collected for fines and fees.

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Dougherty and department secretary Lisa Kean were terminated on Aug. 17. (Kean also was questioned in the criminal investigation as well. She has not been charged with any crime connected to recent events.)

Dougherty is due in court on Oct. 23.

Straz said the investigation remains ongoing. He had provided few details prior to police charging Dougherty because of the open investigation.

"We've been fortunate. In the 12 years I've been in office, this is the first time something like this has happened. This is the last time it's going to happen," Straz said."

"We work for the people of the town here," he said. "Not to steal from the people of the town here."

Read more:

• Former Palos Heights Official Charged with Theft
• Palos Heights Official Fired over Department 'Mismanagement'
• Criminal Investigation into City Official Could Conclude Soon, Police Say
• Palos Heights Official Put on Leave, Could Request Hearing by Next Week