Facts
Born in 1972, [A.] fell from a roof at work on 8 May 1992 and injured his back. The mandatory accident insurance provided the statutory benefits. From 1 May 1993 to 30 June 1995, the InvIA office of the canton of Thurgau paid him a full disability pension. After retraining, [A.] worked in the field of electronic manufacturing from 1 April 1996. From 7 April 2003, he was unable to work due to illness. In February 2005, [A.] reapplied to the disability insurance and requested a pension. The InvIA office awarded him a full disability pension, including three children's pensions, as of 1 April 2004, with decisions of 4 April and 6 June 2006. As a result of the revision procedure initiated in January 2007, the InvIA office informed him on 25 January 2008 that the review of the degree of disability had not revealed any change, and therefore he was still entitled to a full pension.
In March 2008, the InvIA office commissioned the Epilepsy Center to prepare a neurologic-psychiatric expert opinion. Furthermore, it had [A.] examined and assessed at the Medical Expertise Institute. Referring to the findings, the InvIA office informed the insured with a preliminary decision of 12 October 2009 that his state of health had improved and that he was again capable of working, which would enable him to earn a income excluding pension payments. With a decision of 28 May 2010, it cancelled the full pension as of the end of June 2010.
Considerations
The Federal Court partially upheld [A.] 's appeal. The decision of the Administrative Court of the canton of Thurgau of 15 September 2010 and the decision of the InvIA office of the canton of Thurgau of 28 May 2010 were annulled, and it was established that the appellant was entitled to a quarter pension from the disability insurance as of 1 July 2010.
The court found that the InvIA office had to determine the degree of disability on the basis of a correctly and completely established set of facts, and without being bound by previous disability assessments.…