Kernrechtsfrage
Whether the cantonal court violated the duty to investigate by refusing a new psychiatric examination.
Extrahierter Entscheid
No. The court could rely on the existing medical record and the RAD assessment because the later reports showed only a different evaluation of essentially unchanged symptoms.
Extrahierte Begründung
The treating doctors mainly repeated symptoms already present in 2002 and did not provide objective new findings showing a material deterioration. The requested further inquiry was therefore not expected to yield decisive new evidence.