Mae Law yn Llaw at Blant a Phobl Ifanc, ochr yn ochr  â’i waith i wella mynediad at wasanaeth clinigol pan fo’i angen, yn mapio a gwerthuso rhaglenni atal ac ymyrryd yn gynnar drwy ei ffrwd gwaith Ymyriadau Cynnar a Gwell Cymorth i Grwpiau sy’n Agored i Niwed. Mae hyn yn cynnwys Gwasanaethau Cymorth Iechyd Meddwl Sylfaenol Lleol, sy’n gwneud gwaith i sicrhau bod plant a phobl ifanc sydd angen cymorth penodol yn ei gael mewn ffordd gydlynol.
Together 4 Children and Young People, alongside its work to improve access to clinical service when required, is mapping and evaluating programmes for prevention and early intervention through its Early Intervention and Enhanced Support to Vulnerable Groups work stream. This includes the role of Local Primary Mental Health Support Services to ensure that children and young people in need of targeted support receive this in a co-ordinated fashion.