Police received reports of men with dogs poaching on land at Brocklesby Park at 25 minutes past midnight on Sunday, August 10.
They were seen in a grey Subaru Forrester and left across fields when they realised they had been spotted.
Fifty minutes later, at 1.15am, a farmer at Riby reported poachers on his land.
The vehicle again described as a Subaru made off across fields onto Riby drag through an open gate.
Police officers did a sweep of the area but the vehicle was not found.
Any information to police on 101.