It will still have the same constraints as normal TouchID, so it will lock after 48 (72?) hrs and will only unlock with passcode. It might be marginally easier

It will still have the same constraints as normal TouchID, so it will lock after 48 (72?) hrs and will only unlock with passcode. It might be marginally easier for FBI but I imagine 3D printing an acceptable face will be tough, especially if it uses IR on top of 3D cameras.