Where is the prefect badge in Harry Potter and the Prisoner of Azkaban game?

In the Harry Potter and the Prisoner of Azkaban video game, the prefect badge can be found in the Hogwarts grounds. Specifically, you need to go to the area near the Quidditch pitch, where you can climb up to a higher platform. Look for the badge hidden in a tree or on a ledge. Collecting it is part of the game's quest to gather all the collectibles.