France, June 12 -- "For the first time we have a comprehensive European system," said the EU's migration chief Magnus Brunner, maintaining the reform would hand EU nations more control over comings and goings.

Here is an overview of the main changes: Border procedures

Migrants irregularly entering the European Union will undergo identity and security checks in a process lasting up to seven days.

Identity documents and biometric readings of their faces and fingerprints will be recorded in a database.

The screening aims to determine who should receive an accelerated or normal asylum application process, and who should be sent back to their country of origin or transit.

Rights groups complain this will de facto result in most migrants, ...