A Lake County Circuit Court judge ruled Friday that the village of Deerfield overstepped its authority last year when it enacted a ban on assault weapons five years after the Illinois legislature declared such regulations the exclusive power of the state. Judge Luis Berrones issued a permanent injunction blocking the village from enforcing its ordinance. In the ruling, Berrones wrote that the plaintiff gun owners have “a clearly ascertainable right to not be subjected to a preempted and unenforceable ordinance” that prohibits possession of assault weapons, imposes financial penalties for keeping them and allows their property to be confiscated. Deerfield...