FLINT, Mich. (AP) -- Officials in one Michigan county have sent out a small army of enforcers to go door to door to find dogs that don't have a license.

The Genesee County Animal Control Department says the crackdown could raise more than $250,000 in fees this summer. It has 18 full-time workers who will sell licenses on the spot or write tickets.

Chief animal control officer Walt Rodabaugh tells The Flint Journal ( http://bit.ly/MfgUWd ) that some residents haven't seen someone from his department in decades and many roads "have never been touched before."

More than 1,700 dog owners bought licenses during a two-week amnesty when delinquent fees were waived.

Workers traveling in pairs are told to report houses where dogs are inside but no one answers the door.

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Information from: The Flint Journal, http://www.mlive.com/flint