Constable Mulumia has been taking up lessons where teachers fail to report to duty to ensure that pupils do not miss out on their education.
Mr Mulumia spends his free time teaching Mathematics to Grade Five pupils at the school.
Forole town has been hit by a wave of attacks by militia from Ethiopia. More than 20 residents were killed following the May 11 and August 24 attacks.
When teachers at a local school in conflict-prone Forole town on the Kenya-Ethiopia border failed to show up due to insecurity, a police officer decided to switch from a rifle to chalk.
Police Constable Jairus Mulumia had been posted to Forole Primary School to protect the institution.
However, while on his routine duties at the institution last week, he noted that some teachers were missing, owing to insecurity. Eleven people had earlier been killed by suspected Ethiopian militia.
Constable Mulumia noticed that Grade Five pupils were idle and decided to act — he went to the class to teach mathematics.
A photo of the police officer in his combat uniform solving Math problems on the board went viral on social media on Monday night.
Pupils are seen keenly following the lesson. Interestingly, only girls were in class the day the photo was taken.
Mr Mulumia, who is also a trained teacher, is reluctant to comment about the incident, noting that he is not authorised to speak to the media.
When contacted by the Nation, Mr Mulumia said his position does not permit him to speak to journalists unless granted a go ahead by his bosses.
He, however, said he is unaware that his photo has gone viral. “It is something that just happened spontaneously. I did not even know my photo was trending online because the people who took it only said they were documenting about education in the region. Once I have authorisation from my bosses, I will be able to give you further details,’’ Constable Mulumia said.