All four police officers have been given unconditional bail to appear for a plea and case management hearing on May 29.
A trial date has provisionally been set for November.
Bijan Ebrahimi's sister, Manisha Moores was present, supported by an anti race-hate charity.
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A man has been arrested after a woman was killed by a car which failed to stop. The collision happened in the early hours of Saturday.
The latest forecast for Gloucestershire, Wiltshire, Bristol, Dorset and Somerset with Bob.
The latest forecast for Somerset, Dorset, Cornwall and Devon with Bob.