Which amendment applies to this scenario? this amendment guarantees a trial before an impartial jury (one that favors neither side)?

The following are all concern with the right to trial by jury; these are the 6th, 7th, and 14th. But the 6th is the main focus of the criminal justice system as it relates in the US. The 7th relates to civil hearings and the 14th to Due Process. Only the 7th has not been practical carefully to state laws. 

i think that it would be tenth of the first

for the 2 countries u can do china and america because america has a democratic government while china has a communist government.

a democracy is a government run by the people either by directly voting or indirectly by electing representatives. an oligarchy is a government run by a few or a small group of people. a democracy and oligarchy are similar because both in an oligarchy and an indirect democracy, a small group of induvial determine the laws for a large group of people they are different because in an oligarchy it is easier to control and they do not have to answer to a large number of people in the country, unlike a democracy where they do have to answer to a large number of people an county that is a democracy would be the united states. a country that is an oligarchy would be the china.