Whether the Bureau de l'assistance judiciaire still had competence after 1 January 2011 to decide on granting or withdrawing legal aid in a pending case
No. After the LAJ was abrogated, competence in pending proceedings shifted to the judge seized of the merits.
Article 173 CDPJ abolished the LAJ without transitional retention; under Article 39 CDPJ, when proceedings are pending, the seized judge decides on legal aid. The bureau therefore no longer had competence, even regarding aid granted before 1 January 2011.