Where does a weapon need to be in order to be legally considered “concealed”? Can a weapon be in a backpack or purse, or does it need to be directly on a person’s body or within reaching distance of the person?

According to Idaho State law, anyone who has complied with the requirements of State Law 18-3302K and has been issued an enhanced license is authorized to carry concealed weapons "on his person." The weapon cannot be in plain view or discernable by ordinary observation.