In the US, juries are not required to follow the law:
SOURCE: https://en.m.wikipedia.org/wiki/Jury_nullification
RELATED TEXT: "A jury can similarly unjustly and illegally convict a defendant on the ground of disagreement with an existing law, even if no law is broken (although in jurisdictions with double jeopardy rules, a conviction can be overturned on appeal, but an acquittal cannot)."