Answer:
False
Step-by-step explanation:
Since the ex-wife of Brown said she'd be more than happy to spill the beans about Brown's misdeeds if Green can ensure that she receives half of any money recovered as a result of the investigation. Green should go ahead because as an internal investigator that would lead to the findings that may bring the investigation to a successful end by meeting its objectives.
Whistle blowers always have some form of motivation which could be of financial nature
Therefore it will be unwise for Green to discontinue speaking to Brown's ex-wife because she is clearly seeking a financial reward for supplying information.
Finally, the entire money would be lost if Green does not promise 50%, but 50% of the money will be gained if he does. The later is more logically and financially advisable.