Is CAS ruling on UV light blood treatments consistent?

It was previously reported in 2012 that Germany’s National Anti-doping agency (NADA) had investigated the use of UV light blood treatment by athletes as potentially a violation of national  anti-doping rules¹. While the World Anti-Doping Agency (WADA) on 30 January 2012² and the German Sports Arbitration court on 2 Nov 2012³ had both deemed that such UV treatments prior to 2011 were not in violation of the anti-doping code, the German NADA disagreed with that position and raised the case to the Court of Arbitration for Sport (CAS) for clarification.