Germany has reinforced its border checks with Switzerland, focusing on illegal migration through train routes. In recent months, over 14,000 individuals have been turned away at the border, sparking debate on the effectiveness of these measures. While authorities claim the controls are essential to managing migration, critics argue that many will continue to find ways into Germany. As officers like Nelli W. and Ralf P. conduct checks in trains and trams, they remain vigilant in their efforts to intercept those attempting unauthorized crossings, an ongoing challenge amid a complex migration landscape.