Hang Clyde, the Silver Carp
Beat the Barriers

Cornering the Suspects

Detective Barrier is a pro at foiling criminal master plans, but this is no one-man job. He needs your help! By studying the case files listed here, you can learn how to stop these criminals in their tracks and in some cases, keep them out of our waterways.

Here’s the scoop—Are you in grades 4–6 (or just starting to investigate the invaders)? Click on one or more of the case files listed under Junior Detective on the top left and test your skills. If you’re in grades 7–10 (or want a bigger challenge) you can be a Super Sleuth. Check out the files on the bottom left. Try to solve one case, or do more. Detective Dollars and Sense is counting on you!