The Royal Netherlands Marechaussee can issue a return decision to foreign citizens who are not allowed to remain in the Netherlands. A return decision means that you are in the Netherlands illegally. You have to leave the Netherlands and all other countries of the EU and EEA (except Ireland) and Switzerland.
When you can get a return decision
A return decision only applies to someone who does not have the nationality of an EU country or EEA country or Switzerland. The Marechaussee can issue a return decision. You will get a return decision if the Marechaussee finds you at the border or in the Netherlands and they determine that you are in the Netherlands illegally. For example, because you do not have a valid residence permit and have not applied for a residence permit.
Consequences return decision
You must leave the Netherlands, the region of the EU and EEA (except Ireland) and Switzerland of your own accord. You must also return to the country of origin stated in the return decision. The return decision states the period within which you must depart. The normal departure period is 4 weeks (28 days). A period of 0 days is also possible. Then you must leave the Netherlands, the region of the EU and EEA (except Ireland) and Switzerland immediately. With a departure period of 0 days, you usually also get an entry ban.