fair and impartial
Unbiased. The phrase is typically used in legal settings. Can you ensure that my client will get a fair and impartial jury if this case goes to trial?
fair and impartial
just and unbiased. (Usually referring to some aspect of the legal system, such as a jury, a hearing, or a judge.) Gary felt that he had not received a fair and impartial hearing. We demand that all of our judges be fair and impartial in every instance.