Kernrechtsfrage
Whether the lower court violated the duty to investigate by fixing the onset of incapacity without complete medical evidence.
Extrahierter Entscheid
Yes. The case file contained indications of missing evidence, so further clarification was required before fixing the onset date.
Extrahierte Begründung
The existing records were contradictory and did not reliably establish the exact onset of the health deterioration and work incapacity. The employer records, absence reports, and rehabilitation file suggested earlier incapacity, and the court should have obtained further real-time medical evidence and reports.