I share your concern, that is why the scheme of service for police officers was changed. You can not become an inspector of police without a university degree.
The current crop of old guard ocs,ocpd and county commanders are being phased out by a younger more learned crop of law enforcement officers especially from the gsu and administration police.
This effort actually led to a reduction in crime, enabling Nairobi to get a B ranking on security which is not far below rome.
D grade has been left for those in lower ranks, who will be controlled.
Also before you get to particular ranks like OCPD and County Commander now you need to have undergone several management courses in the Kenya school of government and of course intelligence gathering training majorly done by Israel and America.