Last year, the U.S. Supreme Court set precedent by allowing citizens to own firearms as part of their Second Amendment constitutional right. But the justices failed to make a clear ruling on whether of not states or cities could still ban firearms. The landmark case, District of Columbia v. Heller, stated the District could not ban firearms on the basis that it is a unique federal district.

In April, a California court decided that cities should not have the right to ban handguns, rather the state should. Recently, a Chicago court upheld the city’s handgun ban, agreeing with the city rather than the state.

This mix of opinions could lead to another hearing by the Supreme Court.

According to an article in The New York Times, experts believe the issue will lead to an expansion in gun rights.

“Californians, Hawaiians and Oregonians have a Second Amendment right to bear arms, but New Yorkers, Illinoisans and Wisconsinites don’t,” said Adam Winkler, a law professor at the University of California, Los Angeles. “The Supreme Court will want to correct this sooner rather than later.”