Hammerhead
Master
Will somebody explain what type of signs definitely carry the weight of the law vs ones that don't? I'm a newbie, so I need all the help you guys can provide.
There are only a handful of places that are codified in the Indiana Code that are legally off limits. K-12 schools, certain daycares and preschools, riverboat casinos, the Statehouse and surrounding grounds, the state fair grounds during the state fair, past the security checkpoints at airports and on certain airplanes, correctional facilities and jails. Courthouses can prohibit carry, but it's not illegal per the IC.
Anywhere else that decides to post a no firearms sign is just a "rule" or "policy" and as such hold no weight of law in Indiana. They can request anything they want. The only request that must be followed is the request (or demand, if they're being jerks) to leave the premises, which you can be asked to leave for any reason. If you don't, then you can be trespassed.
Carry on.