That could go both ways, maybe they didnt own a plantation or have use for a slave. But they still could support it. Or, they could be completely against it, and think its completely wrong and dehumanizing, they could help runaway slaves get to the north.
Answer:
"In all criminal prosecutions, the accused shall enjoy the
right to a speedy and public trial, by an impartial jury of
the State and district wherein the crime shall have been
committed ..." (paragraph 7)