Identification documents system in Nigeria; 1. Is there a documents identification system in Nigeria? At which level? Is it mandatory to have an identification document? From what age? Which data (biometric, photo, finger prints) is registered? 2. Information on the existence of a civil registration system in Nigeria, what events (e.g. birth, marriage, death) are registered, at which level (LGA, state, federal), if it is mandatory and which authorities have access to this system 3. Information on the existence of a system for registering current residence, including: - which authorities have access to this system and whether it is a mandatory procedure - whether the registration occurs when a Nigerian national moves from one place to another within the same state or from one state to another state, or whether the authorities can become aware by other means [Q1]