Which procedural law applied to the appeal against the 27 December 2010 order?
The appeal had to be dealt with under the former Vaud criminal procedure rules, because the challenged decision predated 1 January 2011.
Under Art. 453 para. 1 CPP-CH, appeals against pre-2011 decisions are handled by the authorities competent under the old law; thus the Tribunal d'accusation had jurisdiction and CPP-VD applied.