Question juridique clé
Whether the restitution claim for invalidity benefits paid from 1 December 2006 to 31 December 2010 was time-barred under Art. 25 LPGA.
Solution extraite
The one-year limitation period had already expired when the restitution decision of 14 December 2011 was issued.
Motifs extraits
Because the benefits had been discontinued by the 24 April 2006 decision and the office had to verify the correct execution when it confirmed the cancellation on 20 November 2008, the office should then have discovered the overpayments through due diligence.