Directorate of Criminal Investigations (DCI) said the trio made a mockery of crime fighting efforts by various agencies to guarantee public safety and security.
In a statement, DCI said the three officers had embarked on an arresting spree targeting boda boda riders, who they arrested on trumped-up charges and demanded bribes from them.
Their plan backfired when they stopped motorcyclist Cyrus Mwangi on City Hall Way and took his motorcycle.
They are reported to have harassed the rider and demanded a bribe of Sh4,000 to release his motorbike which they had impounded.
A curious bystander is said to have alerted two uniformed police officers who were on patrol in the area about the activities of the three officers.