As the Deputy will be aware, prosecutions are a matter for the Director of Public Prosecutions (DPP), who is independent in the performance of her functions.
In order to be of assistance, my officials contacted the Courts Service and An Garda Síochána with regard to the remainder of the Deputy's query.
The Courts Service have advised that their statistics are not compiled in such a way as to provide information with regard to the number of members of criminal gangs brought before the Courts in the last twelve months. An Garda Síochána has further advised that the placing of an individual within any specific grouping would be a security matter grounded in intelligence, which the Deputy will appreciate that An Garda Síochána do not comment on.