O'Duffy also encouraged promising young Gaelic games players to join the police side in Dublin so they were eligible to play for Dublin GAA in county matches. When Dublin won the 1927 All-Ireland Senior Hurling Championship Final at Croke Park against Cork GAA, they had fourteen Garda members on their team, a record for the number of county players from the same club. Membership was originally only open to serving members of the Garda but this restriction was later removed.
O'Duffy also encouraged talented young Gaelic games athletes to join the police side in Dublin so they could participate in county matches for Dublin GAA. When Dublin won the 1927 All-Ireland Senior Hurling Championship Final at Croke Park against Cork GAA, they had fourteen Garda members on their team, a record for the number of county players from the same club. Initially, membership was only open to serving Garda personnel but this restriction was later lifted.