Police have been deployed to a 16-acre property in Nandi whose ownership pits Lands Cabinet Secretary Farida Karoney against the family of former MCA Amos Korir.
A court in Kapsabet earlier issued orders for the land to be surveyed and fenced but the family resisted the enforcement on Friday, saying they are the owners.
Mosoriot OCS Nicholas Pera led a contingent of officers in effecting the order just hours after Karoney was sworn-in at State House in Nairobi.
Villagers also opposed the action, arguing a court ruling must be awaited.
The surveyors could not start their work as tension mounted and police stood guard.
The property is registered as Nandi/Kamoywo 760. Karoney
has produced documents indicating she bought it in 2017 from one Linus Kogo.
After her purchase, she moved to court seeking to take ownership but the move has now been blocked by Korir's family.
The farm was originally owned by the late Maria Chelagat who reportedly sold part of it to Korir's family in 1968.
Korir's and his relatives note they have been living on the land for more than 50 years.
"Our family has lived here for so many years without any dispute. Karoney may have been duped into buying the land without getting proper facts," he said.
"All we want is justice. We respect court orders but we must be heard because all the villagers know the land belongs to our family."
The politician is the brother of Athletics Kenya official Barnabas Korie who was also at the farm today.
Karoney sued Korir and his brothers Barnabas and William in her bid to take over the property.
And on February 12, senior resident magistrate Kesse Cherono ruled: "The district surveyor and land registrar are hereby directed to move to the suit land and survey it for purposes of establishing boundaries and fencing it."
But the former MCA's family claims the order did not include fencing.
After a lengthy argument, police guarded the land as surveyors demarcated it following an agreement between the parties.
Karoney is a newly-appointed Cabinet Secretary for Lands and Physical Planning who promised to end cartel operations during her vetting.
"These cartels are flourishing because of poor record keeping that allows third parties easy access," she told the appointments committee.
"If we eliminate these cartels and secure all records, the land sector will reach a big milestone."