If you see someone stealing or acting suspiciously, it is important that you notify the police. If you have been robbed, or you speak with someone who wishes to report a theft, refer them to make a report online at www.politi.dk.
Always remember to lock your tent and in general look after your personal belongings. If you see anyone who has not locked their tent or who e.g. has their wallet or cell phone in a very exterior place, remind them to look after their belongings.