Parents in Kwale have been cautioned against inciting schoolchildren to violence.
The new development comes days after learners at Mwamgunga Girls' High School in Tsimba protested against their principal.
The students wanted the principal removed, accusing her of several issues. The head denied any wrongdoing.
The protests escalated to confusion as both parents and students took to the streets to air their grievances, blocking the Kombani-Kwale road and attempting to vandalise vehicles.
Recently, the parents had tried to block the principal from accessing her office, causing unrest in the school.
County police commander Ambrose Steve Oloo condemned the act, warning parents and students against using force.
"If anyone is found violating the law, they shall be charged in a court of law," he said.
Oloo said parents have no right to usurp the work of the Ministry of Education and the Teachers' Service Commission. He said parents don't get to decide which principals or teachers should be taken to certain schools.
"Your responsibility is to take the child to school for education, not demanding specific teachers for your children. Let the ministry do its job," he said.
He said any complaint should be lodged through proper channels for legal action.
The officer said further harassment of the principal or any teacher in the region would be treated as a criminal offence.
The parents and students have, however, maintained that the school principal must go. They said it is their right to ensure students are in safe hands and get the desired education.
Rashid Saidi said they won't relent until the principal is fired and action taken against her.
"Parents and students are tired of this teacher and we want her out," he said.
Some parents threatened to transfer their children if the government will turn down their demands.
Matuga deputy county commissioner Alexander Mativo said investigations were ongoing. He said the school management, parents and teachers would be involved in the decision-making when they have compiled enough data.
"We are still analysing the problem and be assured everyone will get to know of the Ministry of Education's decision," he said.
Meanwhile, the county security team is also probing fresh cases of school arson in the region. Two fire cases have been reported within a week, leaving hundreds of students out in the cold and property destroyed.
The recent one is of Mwaluphamba Secondary where students had to spend the night standing after their dormitory caught fire on Thursday night.
On Monday, a dormitory at Golini Secondary was also reduced to ashes following a fire incident.
Mativo warned students against being part of the problem.