Since November 2015 Sweden has introduced temporary border control at the internal borders of countries that are part of The Schengen Borders Code.
The Swedish Police defines where and how the border control is carried out and the controls are restricted to what is deemed necessary in order to ensure internal security. The Police will check for valid travel documentation and ID.
For Nordic citizens a valid driver’s license, issued in one of the Nordic countries, will in most cases be sufficient, but to be sure, one should bring a valid passport or national ID. All other nationalities must bring a valid passport or national ID.
Minor Nordic citizens, traveling with a parent or guardian, but without personal travel documentation, will be granted entry if his/her parent or guardian can show the necessary documentation, and prove custody or necessary relation of the minor.