Police in Lincolnshire say they are still catching hare coursers on a daily basis.
Lincolnshire Police launched their special crackdown on hare coursing, 'Operation Galileo', last September and say they are bringing more offenders to justice.
There have been 550 prosecutions since September 2012, and 1200 reported cases over the last year.
One recent incident resulted in around £30,000 worth of betting on dogs for the offenders.
The illegal sport, which involves dogs like lurchers chasing hares to kill them, can mean big money for those behind it.
But the police face a common problem - the coursers will say they have been given permission to be on the land to catch rabbits, and witnesses are often reluctant to give evidence. Sergeant Dave Robinson of Lincolnshire Police has been talking to Kate Hemingway.
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