There are many examples of juries interposing their own moral or political judgment in defiance of a law. In the mid 1800s, juries in Northern states practiced nullification in prosecutions brought against individuals accused of harboring slaves in violation of the Fugitive Slave Act. Later, during prohibition in the 1930s, many juries acquitted individuals accused of violating alcohol control laws. In the high profile case of Dr. Jack Kevorkian, the jury acquitted Dr. Kevorkian despite the uncontroverted evidence that Kevorkian had violated Michigan law by helping the deceased commit suicide.
But jury nullification has its dangers as well. For example, in the 1950s and 1960s some all-white southern juries refused to convict white supremacists for killing black individuals or civil rights workers despite evidence of the defendantsÂ’ guilt.