trespass ab initio
- An act that initially appears lawful, but due to later illegal actions, is legally considered to have been a trespass from the start
- The security guard was held liable for trespass ab initio when he wrongfully detained a visitor after first allowing him access to the building.
- Because of his subsequent criminal act, what seemed like a lawful property visit was deemed trespass ab initio.
- The court concluded that the defendant's actions constituted trespass ab initio, as he later committed an offense on the property he was initially permitted to enter.