Secretary of State for the Home Department (Home Office)

The complainant has requested information about the Home Office’s Interactive Advance Passenger Information (iAPI) and (Electronic Travel Authorisation (ETA) systems. The Home Office disclosed some information, but it withheld a detailed technical specification document, citing section 31(1)(e) (Law enforcement - prejudice to the operation of the immigration controls) of FOIA. The Commissioner’s decision is that the Home Office was entitled to apply section 31(1)(e) to withhold the information.