Frankfurt airport was testing out a new automatic immigration system on Thursday, the first time such a system has been tried out in Germany.
The so-called self-service kiosks at Germany's largest airport will also capture biometric data, police at national headquarters in Potsdam just outside Berlin said.
The advance information checks are intended to speed up and modernize the immigration procedure.
By the middle of 2017, the test at Frankfurt airport is expected to clarify how the immigration system can be accelerated despite the heightened security situation.
The system is being developed in connection with the European Commission's "Smart Borders" initiative, the police said.
The intention is to develop a pan-European Entry-Exit System, among other things.