Unlocking Charm

The Unlocking Charm (Alohomora), also known as the Unlocking Spell or the Thief's Friend is a charm that unlockes objects such as doors or windows. It is also able to open doors locked by the Locking Spell (Colloportus), and as such, acted as its counter-charm. The Anti-Alohomora Charm can be used to prevent this charm from working on a locked target.