 Only in Limburg was he betrayed by a man named Zerfass from the "long hedge", today Villmar-Langhecke, and after a short detention in the basement of the recruiting office, under heavy guard, he was transferred to the imperial city of Frankfurt am Main.At that time, Bückler's determination to lead a robber's life was wavering.He promised the imperial authorities to provide information about all his crimes as long as he was not extradited to the French authorities who had occupied the Electorate of Trier, west of the Rhine, since 1801.