Stock Photo - 29 April 2023, Schleswig-Holstein, Busdorf: Alexander Matera, Explosive Ordnance Disposal Service and probe walker, explains to the participants of the practical probe walker exam on a meadow near the Haithabu World Heritage Site how they should proceed in the event of a find. Around 35 men and women took their practical exam to become probe walkers. To be allowed to search for treasures with a probe in Schleswig-Holstein, one must first complete a certification course with a theoretical and a practical part. Only then can one obtain a permit to search in a specific area. (to dpa ""Probe hunters are trained by the State Archaeological Office"") Photo: Marcus Brandt/dpa. - Busdorf/Schleswig-Holstein/Germany