Isabelle Coulson and Ross Phillips were among the first to attend the scene of a dog attack in Caerphilly in November 2021, where Jack Lis was sadly killed.
Roedd Isabelle Coulson a Ross Phillips, dau sarjant yn Heddlu Gwent, ymhlith y cyntaf i gyrraedd lleoliad ymosodiad gan gi ymosodol a pheryglus yng Nghaerffili ym mis Tachwedd 2021.