Police are looking for a Jeep vehicle they suspect was used in a report of hare coursing on on land in Sutton St James.
A green Jeep Cherokee was seen in Dog Drove on Tuesday when it was reported to be carrying dogs as it headed towards Holbeach St Johns.
Anyone with information should call 101, quoting incident number 100 of November 3.
It comes after 46 confirmed reports of hare coursing last week, according to Lincolnshire Police.
Of these, 11 persons were reported for criminal offences, two vehicles were seized by police and another 11 people were told to leave Lincolnshire.