THE STANDARD KENYA Sergeant David Mbitu Muchia, a Kenya prisons officer who battled depression and now is a mental health awareness advocate. [Courtesy] As cases of murder and suicide among police officers continue to rise, one prisons officer, who is a victim of mental health and substance abuse has been at the forefront in creating awareness. Sergeant David Mbitu says he has in the last five years been working with officers in addressing cases of depression and substance abuse among his colleagues. “One of the challenges many officers face is they do not realise the impact their work has on their mental health,” he noted.