http://www.wibc.com/blogs/gun-guy/gun-g ... un-license
The Indiana supreme court has ruled that the mere possession of a firearm in public does not create reasonable suspicion that crime is afoot.
The MN supreme court ruled that carrying is a crime, having a permit is merely an affirmative defense to the crime. Therefore a LEO can assume you're committing a crime, and can detain you for no other reason than you're carrying.
Courts have previously ruled that carrying doesn't create RAS of a crime, but those decisions (I believe) only applied to states with constitutional carry.