The State Journal (http://bit.ly/1fbEXDy ) reports that officials became aware of the missing weapons when a deputy couldn't find on the evidence log weapons linked to cases he had worked.
The missing firearms date to cases from 2010 or earlier.
Sgt. B.F. Hall says there were no orders on file to explain how the weapons ended up for sale.
The secretary of state must issue an order authorizing police to dispose of weapons from evidence rooms. Once the order is issued, Hall said the guns either can be destroyed or sold.
Hall said the investigation could take a month or more to wrap up.