What charge applies to Frank for attempting to stab Jack but missing?

The charge of aggravated assault is applicable in situations where a person, with the intent to commit a violent act, threatens another in a way that creates a fear of imminent harm and uses a dangerous weapon, despite the act not resulting in physical injury. In this scenario, Frank attempted to stab Jack but missed. The use of a knife constitutes a dangerous weapon, and the act of attempting to stab indicates an intention to cause serious bodily harm.

Because Frank made a direct attempt to inflict harm with a weapon, even in the absence of actual contact, the situation escalates beyond simple assault, which usually involves the threat of harm without a weapon or an attempt to inflict harm that does not involve a dangerous weapon. Hence, the most appropriate charge here is aggravated assault, as Frank's actions reflect a serious intent to harm coupled with the presence of a dangerous weapon.