We are in high school, and the competition is about criminal investigation. A 10th, or an 11th grader should know everything about criminal investigation, and should answer every single question without asking, seems legit...
In the first two rounds we are just preparing theoretically for the third round, where we have to go in there and prove ourselves - practically, like investigating a made up crime - without any help, and that is the point of the whole competition. But how could we learn, if we can not solve the problems, because some people will not help us.