Report Classes

Consider the following:

If i am at sales and go to customer and sales reports i could generate specific reports for sales once you are there you could switch to other reports for example to reports that are meant for purchasing / bank & General Ledger to generate reports and so on.

Good en very friendly  but if i don't want that my sales department must see what mi purchasing price are and where i purchase still they could see it if i give them access at sales reporting section they could browse/switch to generate reports that they should not see for example my P& L account.

Is it possible that i block it for them ?

Hopefully i described the situation crystal clear.

Greetings,