http://www.baltimoresun.com/news/ma...ie-gray-statements-20150505-story.html#page=1 "The State baldly asserts that 'the knife was not a switchblade knife and is lawful under Maryland law,'" Zayon wrote in the motion filed in Baltimore District Court. "The State further suggests that the Defendant 'failed to establish probable cause for Mr. Gray's arrest, as no crime had been committed.'" Zayon contests Mosby's claim that officers illegally arrested Gray, and he said an inspection of the knife will show it was illegal. State law says a person may not "display" a "switchblade" or a "knife or a penknife having a blade that opens automatically by hand pressure applied to a button, spring, or other device in the handle of the knife." Baltimore City code says a person can't carry or possess any knife "with an automatic spring or other device for opening and/or closing the blade, commonly known as a switch-blade knife." A Baltimore police task force, commissioned to investigate Gray's death, analyzed the knife and determined that it was "spring assisted" and in violation of the city's law.