Prosecutorial duty to disclose exculpatory information

Question 1

When does prosecutor’s failure to disclose evidence violate DPC? Whether it is…

Answer 1

willful OR inadvertent

Question 2

When does failure to disclose constitute grounds for reversing conviction?

Answer 2

1) evidence is FAVORABLE to D AND
2) PREJUDICE has resulted, meaning there is a reasonably probability that the result would have been different had the info been disclosed

(if verdict strongly supported by other evidence, no prejudice to D)