Clues helped the officers find thirteen empty cash boxes and a G4S jacket in Thogoto.
Detectives last Friday established the phone numbers of suspects in the Sh72 million heist through a process called triangulation.
They identified all phones that were at the scene of the crime and established that the numbers of the three suspects went in the same direction from the scene of the crime in Nairobi West.
The phones were later switched off at the Thogoto forest in Kiambu county where the clue helped the officers find thirteen empty cash boxes and a G4S jacket.
The scattered boxes belonged to Standard Chartered, Kenya Commercial Bank (KCB), Stanbic Bank and Barclays Bank were chanced upon by a local who notified Kikuyu Police Station command.
Other items found in the forest were a mobile phone, an Itel model, a sim card serial number 89254021104175661927 and a black G4S jacket.
“During this time the detectives were also establishing contacts of relatives and friends that frequently used to call the suspects numbers,” an officer privy to the investigations told the Star.
“We then started looking for strange numbers that called relatives and friends. We traced the numbers and how we ended up with the suspects,” he said.
The robbers on the run are believed to be part of a larger plot involving insiders who schemed a smooth getaway plan.
“The detectives are in hot pursuit of the other criminals who are on the run to face Justice. The three arrested suspects are in lawful custody as further investigations are ongoing,” added the DCI.
Detectives from SCPCU have arrested Administration Police Constable Chris Ayienda Machogu and recovered Sh4 million.