Police officers on Monday swarmed the Muthaiga home of Jimi Wanjigi after guns and bullets were seized at a house in Malindi that is believed to be his.
After the raid was reported, NASA leaders including James Orengo, Johnstone Muthama and Junet Mohamed condemned the police action as illegal.
“This illegal activity was undertaken because he is associated with Nasa,” said Mr Orengo at Wanjigi’s home.
He said the police search was connected with a police raid on a house belonging to two Italian investors Franco Fantani and Giovanni Ferliga in Malindi on Sunday night.
During the search, police arrested four people and recovered five guns, 93 bullets and a wildlife trophy.
However, Mr Orengo claimed the guns and bullets were planted by police even as Malindi police boss Matawa Muchangi said officers were working on intelligence provided to them.
The police boss said the housekeepers and security guards were arrested on Monday morning while reporting for duty.
“The four suspects were also arrested at the house and have been taken for interrogation to help us in investigation,” he said, adding that “also recovered is a tortoise shell.”
One of the suspects, Mr Stephen Mulewa, told journalists while under tight security that he was hired at the premises by a wheeler-dealer allied to the National Super Alliance (NASA) and was arrested on Monday morning after reporting work.
“I arrived at the house in the morning and I noticed something unusual after seeing policemen surrounding the premises only to be told that firearms had been recovered at the premises,” Mr Mulewa said.
Police restrained him from revealing more information about the incident.
He however said that he was unaware of the guns found in one of the stores despite having worked at the house for a while.