Officers investigating the murder of Sgt Matt Ratana continue to work around the clock as part of a detailed and thorough investigation.
A man has been arrested in the early hours of Sunday 27 September in Norwich, on suspicion of supplying a firearm. He is currently in custody at a South London police station.
This arrest, which occurred at approximately 0200hrs, forms part of the investigation into the murder of Sergeant Matt Ratana.
The searches and forensic examination of the scene in Pollards Hill have been concluded and the cordons have now been removed.
The suspect for Matt’s shooting remains in hospital. He is in a critical condition and consequently we are not able to speak to him.