she finished 12th. 2010 doping arrest In December 2010, Domínguez, together with 13 other people including her coach, were arrested during "Operación Galgo" (Operation Greyhound), a major criminal investigation into sports doping carried out by the Guardia Civil. Her home was raided and several items were taken including her laptop, a briefcase and a box. Domínguez was released on charges of trafficking and distribution of doping substances. She was also suspended from her position as vice president of the Spanish Athletics Federation. According to the newspaper, Público, the leader of the alleged ring was Dr Eufemiano Fuentes and his sister Yolanda, the former also being at the centre of the notorious Operación Puerto doping ring in 2006. The lack of prosecutions arising from Operación Puerto led to criticism of the Spanish authorities for an apparently ineffective approach to doping in sport, and prompted the Spanish government to pass tougher anti-doping legislation that now makes the supply and use of performance-enhancing drugs illegal, with penalties including jail terms. According to El País, the investigations conducted by the Guardia Civil under Operación Galgo have also directly implicated Domínguez in the Operación Puerto doping ring. A blood bag seized during the Puerto investigation, and which Eufemiano Fuentes had recorded as belonging to an athlete whom he codenamed "Rosa", accompanied by her mobile telephone number, was attributed to Marta Domínguez. According to El País, in July 2010 Domínguez was being wiretapped by the Guardia Civil. She was taped talking, among others, with Alberto Garcia, a Spanish runner banned in 2003 for using EPO, an illegal substance. In one conversation presented at the trial Domínguez, according to Garcia, asked him for how long EPO is detectable in blood tests after use. However, the judge ruled that the wiretapping of Domínguez phone was not justified, and ordered to exclude this and all other conversations from evidence of the trial. The judge later acquitted her when it was found the substances that were believed to be illegal were in fact legal. 2015 doping ban On 19 November 2015, she was banned for three years by the Court of Arbitration for Sport and was stripped of her 2009 gold medal from the IAAF World Championships in Berlin. The punishment stems from Domínguez's ties to doping as well as issues with her biological passport. All of Domínguez's results from 5 August 2009 until 8 July 2013 have been nullified,