The concept of an impartial jury is central to the operation of our criminal justice system. For hundreds of years we have put our faith in those twelve ordinarily citizens, unbiased and unswayed by extraneous and irrelevant considerations, to stand as the fail-safe system and last line of defence between citizen and state. But of course the key part of that concept is impartiality. For any accused person to have a fair trial, the jury that deliberates on their guilt or innocence must be entirely unbiased and undistracted by any influence beyond the evidence adduced in court.
