South Norfolk Police Engagement Officer Jim Squires is encouraging people to be vigilant after numerous incidents of hare coursing in the district.
Hare coursing, the pursuit of hares using hounds, was made illegal following the 2004 Hunting Act. People convicted of the offence can be fined up to £5,000.
PC Squires said: “In South Norfolk in the last six months we have had 21 calls about hare coursing, and we know this is probably a small percentage compared to the actual number of incidents taking place.”
Norfolk Police says people should not approach the participants if they see an event taking place, but to call 101 immediately, or 999 if a crime is taking place.
People are asked too record as much information as they can, such as vehicle registrations, makes, models and colours, and descriptions of people and dogs seen in fields.
A spokesperson added: “Hare coursers are criminals and give no consideration to landowners’ property and crops.
“We are committed to protecting Norfolk landowners’ property and crops along with the declining population of brown hares and prosecuting those involved with hare coursing.
“In order to do this, we work in partnership with farmers, landowners, and gamekeepers.”