Border control and surveillance systems (I)
In the mid-1970s, traditional smuggling transformed into a different kind of smuggling more in keeping with the reality imposed by the times and finally disappeared towards the end of the 20th century after Spain and Portugal joined the European Union (1986), and the lifting of customs barriers after the Schengen Agreement (1995) came into force leading to the definitive abandoning of the activity by smugglers on the border.