However, in light of the November 2015 terrorist attacks in Paris, during a meeting of the Council of the European Union on 20 November 2015, interior ministers from the Member States decided to 'implement immediately the necessary systematic and coordinated checks at external borders, including on individuals enjoying the right of free movement'. Amendments were made to the Schengen Border Code to introduce systematic checks of the travel documents of EEA and Swiss citizens, as well as their family members enjoying the right of free movement, against relevant databases when crossing external borders.&lt;ref name="Reg2017/458"&gt;Regulation (EU) 2017/458 of the European Parliament and of the Council of 15 March 2017 amending Regulation (EU) 2016/399 as regards the reinforcement of checks against relevant databases at external borders (OJ L 74, 18 March 2017, p.1)&lt;/ref&gt; The new regime came into force on 7 April 2017.