The Independent Office of Police Conduct (IOPC) was informed after the chase on April 18 near Beulah Hill.
Police followed a vehicle they suspected of having cloned number plates, trying to stop it on South Norwood Street around 8.38pm.
After a brief chase, the vehicle being pursued crashed into two other member of the public’s vehicles on the A232 Wickham Road at the roundabout with Shirley Road around 8.45pm.
The driver of the vehicle being chased, a 63-year-old man, was pronounced dead at the scened despite attempts to save him.
Six other people were taken to hospital, some with serious injuries and one in a life-threatening condition.
The IOPC was informed by the Met about the incident that night and investigators were sent to the scene and to post-incident procedures.
They have gathered initial accounts from the officers involved and the available body-worn video footage.
They have also spoken to the man’s family and will keep them updated as the investigation progresses.
Witnesses to the incident on a “busy” road are being asked to come forward.
IOPC director Amanda Rowe said: “Our thoughts are with the man’s family and friends and all those affected by the collision, particularly those who have been injured.
“Our role is to independently investigate the circumstances surrounding this incident and we are in the very early stages.
“This is a busy road in Croydon, and we would urge anyone who may have witnessed the incident or the moments leading up to it to come forward and report what they saw.”
Two arrested after police chase crash leaves one dead and six injured in Croydon
A London Ambulance Service spokesperson said at the time: “We were called at 8.47pm on 18 April to reports of a road traffic collision near the junction of Wickham Road and Shirley Road in Croydon.
“We sent multiple resources to the scene, including ambulance crews, incident response officers, members of our hazardous area response team (HART) and an advanced paramedic. We also dispatched London’s Air Ambulance.
“We treated seven patients at the scene. Sadly, one person was declared dead at the scene. We took one patient to a major trauma centre and took five patients to hospitals.”
A Met Police spokesperson said: “The Met’s Directorate of Professional Standards was immediately informed and a referral made to the Independent Office for Police Conduct (IOPC) which is a required step whenever vehicles are involved in a collision involving death or serious injury following a police pursuit.
“The IOPC will now carry out an independent investigation.”
Witnesses are asked to contact IOPC investigators by calling 03003035732 or emailing WickhamRoadRTI@policeconduct.gov.uk
