The Jackson Police Department received an unwelcome gift yesterday afternoon when a citizen dropped off a suspicious package for the police to inspect. Sgt Todd Breedlove took one look at the item in a small soda box and started to evacuate city hall, the police department and other surrounding properties. The Calaveras County Bomb squad arrived on scene shortly afterward and determined that the package did indeed contain an explosive device of some kind. Hwy 88 was closed from Pitt Street through Hwy 49 causing a traffic backup. The bomb was detonated at about 5:35 pm causing a huge dust cloud and main street buildings to shake, but no broken glass. By about 6 pm all roadways were opened.(