When I first read about a bill passed and signed into law in Indiana that allowed people to use force against the police entering their homes if they reasonably believed the police were acting illegally, I was pretty appalled and was prepared to chalk it up to a very extreme gun rights agenda. Now that I read this, however, it makes a little more sense. Apparently, the doctrine in question was the law in Indiana from time immemorial and it was only recently that the Indiana Supreme Court (in what appears to be a fairly activist ruling) carved out a special exception for police officers only. Under that ruling, the police (and ONLY the police) could enter your home illegally and you would be forbidden to resist them or defend yourself. The bill returned to the status quo.
Castles in Indiana