Originally Posted by Thor 2
Juries are not always the "best and fairest way to reach a verdict". That is why in high profile cases where there is a lot of public discussion about the case, a judge may prove more impartial than a jury.
However, one of the reasons for jury trials is to guard against corruption in the legal system. Every member of the legal system has a dog in the fight and interests of the system may be more important to them than the interests of the accused. Juries have no interest in protecting the legal system and are freer to decide a case on their own beliefs.