Auto-injector housing latch

An auto-injector 100 for receiving and operating a syringe to facilitate injection of medicament into a subject comprising an openable lid 102 to allow insertion and removal of the syringe, a lid latch operable to latch the lid in a closed position, and a needle safety shroud 105 moveable between a first retracted position and a second extended position. The auto-injector is configured such that, when the safety shroud is in the first position, the lid latch cannot be released preventing the lid from being opened and, when the safety shroud is in the second position, the lid latch can be released allowing the lid to be opened. A kit comprising the auto-injector and a safety syringe is also provided.