The police department of VIC was investigating a murder case and had lined up a few suspects but they did not have concrete evidence to charge anyone. After struggling for a couple of weeks, the department announced a reward of $5000 to anyone who provides information and evidence to help the department charge the real culprit. No one came forward to help the department in spite of the lucrative reward. The department did their own investigation and arrested John (based on his fingerprints that were collected from the crime scene and CCTV footage that showed John entering the property where the crime was committed). The police were about to charge John and present him before the court when John shared some critical pieces of evidence and vital information that helped the department identify and arrest the real culprit.

When the real culprit was arrested, the department released John. John is now demanding a reward from the department but the department denies giving the reward to John. John has come to you to seek legal advice on his case. Advise John whether he will be successful in getting the reward or not.

(Note: Give legal reasoning to support your answer. Your answer must include the legal rules applicable to the situation, One precedent, and the application of the legal rules)