MADRID - A Spanish union acting as a private plaintiff in a corruption case against Inaki Urdangarin, King Juan Carlos' son-in-law, asked a court Wednesday to order him to surrender his passport to prevent him from accepting a job offer in Qatar. Spanish media reported Monday that Urdangarin, a 45-year-old former Olympic handball champion, has been invited to either help manage Qatar's national handball team or promote the sport in the oil and gas-rich Gulf state. The Manos Limpias, or Clean Hands, civil servants' union said it had asked the court in Palma de Mallorca that is leading the investigation into Urgangarin to declare him a flight risk and remove his passport because of the job offer. "With this contract he could skirt his responsibility to the court. Since there is no extradition treaty between Qatar and Spain, when he is summoned to appear before a judge there is a risk that he will not show up," the union's secretary general, Miguel Bernad, told AFP. Manos Limpias is acting as a private plaintiff in the corruption case, a status permitted by Spanish law. The conservative group has been very active in combating corruption cases and was behind a lawsuit against renowned human rights judge Baltasar Garzon for abuse of judicial power which led him to be banned from the judiciary. In its petition to the court Manos Limpias said its request was "not exaggerated or extravagant". "On the contrary, it is proportional and logical," it added.