Mounted police and St John Ambulance officers were so successful at last year's National Agricultural Fieldays that they are back this year.
Husband and wife police officers Bill and Karen Eivers have been patrolling the Fieldays at Mystery Creek, south of Hamilton, on horseback to maintain a high profile police presence at the event, which began yesterday and ends on Saturday.
A Waikato police spokesman said mounted police were an active deterrent to anybody considering theft or other crimes at Fieldays.
"They do a lot of patrolling around the carpark areas and also people can see them a lot further away. It's proved very successful because we made a number of arrests last year from it."
So far this year there had been no arrests.