cristina kirchner faced several charges in court after leaving office. one of those concerned the sale of dollar futures at very low prices near the end of her term of office. this became a problem during macri's presidency. the operation was carried out by the central bank, but judge claudio bonadio believes kirchner is the instigator. kirchner is also being investigated for her role in "the route of the k-money" scandal. about us$1 million of her assets was frozen while bonadio investigated the case. she took advantage of the hearing to organize her first political rally since leaving power. lázaro báez who has close ties with the kirchners was detained in april 2016 as it was suspected that he might flee escape. josé lópez, an official from the ministry of public works, was detained while trying to hide bags filled with millions in cash at a monastery. on 27 december 2016, federal judge julián ercolini ordered the freezing of us$633 million of kirchner's assets and approved charges of illicit association and fraudulent administration against her. the case presented by nisman was finally opened for investigation in december 2016.