There was a prosecuting attorney who had a person on trial for an infraction of the law for which there was a lot of circumstantial evidence. The prosecuting attorney is reason- ably sure that he will win his case and put the person behind bars for a number of years. Grant in the case that this person being tried was really a "bad" guy, bad news for society. He worked for the syndicate taking contracts to kill, sold drugs to children and, for fun, he raped women. However, he was clever and concealed evidence, and although tried before, was never proven guilty.

It happens that the prosecuting attorney uncovers some evidence in the particular trial in question that completely exonerates this person of this particular crime. Only the prosecuting attorney knows this evidence, and no one else will ever know that he ran across this evidence.

Answer the following questions relating to DEONTOLOGICAL THEORY? 

What ought the prosecuting attorney do? Not just what does the law say in this case, but what is his moral obligation? Should he protect society from this known bad guy by sitting on the evidence and putting him behind bars? Or, should he reveal his secret evidence and let the bad guy go free, allowing him to continue his life of crime against society?