Social security disability pension denied due to improper expert witness qualification in vocational capacity assessment.

The Supreme Court dismissed the social security agency's decision denying a disability pension to a miner with occupational vascular disease. The applicant argued that the lower courts failed to appoint a specialist in vascular surgery, violating procedural rules requiring expert knowledge for complex medical assessments. The court ruled that the omission of a vascular surgeon's opinion constituted a procedural error under the Civil Procedure Code, necessitating a retrial.