ensure there are joint systems in place for the early identification and preventative action to help reduce the numbers of children taken into care as a result of substance misuse
sicrhau bod systemau ar y cyd ar waith ar gyfer y camau adnabod ac atal cynnar i helpu i leihau nifer y plant sy'n cael eu cymryd i ofal o ganlyniad i gamddefnyddio sylweddau