Chicago Bears defensive tackle Tank Johnson pleaded not guilty to misdemeanor weapons charges after a police raid on his home last month. Johnson, dressed in a suit and tie, did not speak during the Lake County court hearing before Judge Theodore Potkonjak. Defense attorney Tom Briscoe entered the plea for him. His next court date in Lake County is set for Feb. 16. Johnson was arrested Dec. 14 after police raided his Gurnee home. It was his third arrest in 18 months. He faces 10 counts of possession of firearms without the required state gun-owner identification card; prosecutors say six weapons were in the home and the other counts relate to ammunition found there.