The Independent Police Complaints Commission (IPCC) has confirmed the identity of the man who died as a result of a road traffic collision involving Thames Valley Police officers.
A spokesman said: "Matthew Kenneth Seddon, 19, of Wensley Road, Reading, died following a collision on the A33 at about 11.25pm on Monday, 11 February.
"A post-mortem was carried out on Wednesday, 12 February and an inquest has been opened and adjourned.
"An independent investigation has begun which will establish the circumstances surrounding the collision."
Witnesses are urged to contact IPCC investigators on 0800 096 9078.