An amendment to the California Penal Code – making it a felony for a prosecutor to purposely withhold exculpatory evidence in a criminal case – is on the Governor’s desk and is expected to be signed into law or vetoed by the end of September. This new law would be in lockstep with a set of ethical rules being considered by the Board of Trustees of the California State Bar which, if adopted, would advance a very similar purpose. From a defense perspective, such regulations underscore the importance of vigilantly evaluating every facet of every case.