( CNN ) -- Stolen medical files that may be those of Michael Schumacher are being offered for sale , the injured former F1 racing driver 's manager said . Schumacher has been undergoing hospital treatment since a skiing accident last year but is now out of a coma . Manager Sabine Kehm said the documents had been offered for sale for several days . She added , `` We can not judge if these documents are authentic . However , the documents are clearly stolen . The theft has been reported . The authorities are involved . '' Medical files are confidential , and it is forbidden to buy or publish such data , Kehm said . `` We will therefore , in every single case , press for criminal charges and damages against any publication of the content or reference to the medical file , '' she said . Schumacher , 45 , suffered severe head trauma in a December 29 skiing accident at the French Alps resort of Meribel . The champion driver , from Germany , was transferred last week to Switzerland for rehabilitation from a hospital in Grenoble , France , where he was kept in a medically induced coma for more than three months . The Grenoble hospital 's media office said in a statement that Kehm `` told us that a person intended to sell to the press a document allegedly issued from the medical records of Michael Schumacher . '' `` Without knowing the precise nature of the document , the Grenoble Hospital decided to sue for 'theft and breach of medical confidentiality ' so that an investigation can be initiated . '' A spokesman for the German newspaper Bild , Tobias Frolich , told CNN that the tabloid was among a number of media outlets to be offered Schumacher 's alleged medical records , but that `` the editorial office decided to reject the offer . '' A French prosecutor investigating the accident concluded that speed was not behind the fall suffered by the seven-time world champion , whose F1 career ended in 2012 . CNN 's Stephanie Halasz , Diana Magnay and Lindsay Isaac contributed to this report .
NEW : This means the product will ship as received by the manufacturer, sealed, with all advertised components, and with the manufacturer warranty. French hospital decided to sue for `` theft and breach of medical confidentiality '' Michael Schumacher 's manager says stolen files are being offered for sale as those of the driver 's . Injured ex-F1 racing driver was transferred to a Swiss hospital to undergo rehabilitation .