< p>DES MOINES, Iowa (AP) — Iowa officials are re-examining state personnel rules after a newspaper investigation revealed that 33 state employees who were fired returned to work for the state in the past five years.

The Des Moines Register (http://dmreg.co/TUe7Uf ) examined the records of 328 state employees fired for just-cause in the past five years.

An Iowa conservation officer is still working even after being fired twice for alcohol-related offenses.

One of the rehired employees had been fired for habitual tardiness. But she was later fired again.

David Roederer is the head of Iowa's Department of Management. He says rehiring fired employees shouldn't be happening.

But he says that most of the cases where an employee is rehired involve the state's grievance and arbitration process where the employee appealed the firing.

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Information from: The Des Moines Register, http://www.desmoinesregister.com