Garda ceased to have a raison d'etre when the miners left. There was nothing left to police, no taxes to collect. To give the rank and file a chance, they should be freely allowed to act as the id card says - kill BMM/BAF, tax traders and wreak havoc on corsairs/zoners/anyone i dont like.
However, I reserve the right to reincarnate the Garda should mining become popular again. think of it not as a faction dying, but going into cryogenic storage, waiting for the time that they can arise again.
Garda - the once and future kings of roleplay in dublin... (i jest)