The police officer who died by suicide at the DCI headquarters in Nairobi has been identified as Corporal Linus Muia Mutunga.
Mutunga, 59 was due for retirement end of this year.
He was a driver attached to the DCI operations department at the time of the incident.
He shot himself in his car on Wednesday morning moments after he had reported to work.
The motive of the suicide is yet to be known.
His colleagues said he locked himself in the car and shot himself in the head.
He died instantly in the Wednesday, October 11 incident.
His colleagues were alerted by the sound of the bullet from the parking lot of the operations section and on checking they found him dead.
His head had been burst by the bullet from his pistol.
DCI boss Mohamed Amin and chief government pathologist Dr Johansen Oduor visited the scene.
His body was moved to the mortuary pending autopsy.
Senior officers were in the office at the time of the incident.
This is the latest such incident to happen in the service.
Last week, a senior officer died by suicide in his house in the Utawala area, Nairobi.
Superintendent Ezra Ouma shot himself in his house Thursday, October 5 afternoon moments after he had called his friend who is also a police officer, and told her he would die by suicide.
Ouma was in charge of the Special Operations Bureau (SOB) at Kayole police division.
He was due for retirement in two years, his colleagues said.
Police who visited the scene said Ouma had also shot a neighbor in the left leg after he tried to stop him from his mission.
Dozens of police officers have died as a result of suicide a trend that is attributed to stress at work.
As part of efforts to address the trend, police authorities have launched counseling services and the National Police Service Commission has established a unit and staffed it to attend to their demanding situation.