Kernrechtsfrage
Whether the IV pension was lawfully revoked on revision due to improved health and loss of incapacity
Extrahierter Entscheid
The pension was lawfully revoked because no psychologically relevant impairment affecting work capacity remained.
Extrahierte Begründung
The surveillance findings and the convincing psychiatric assessments showed a marked change in the medical situation; without a work-capacity impairment, the pension entitlement fell away.