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prif egwyddor y strategaeth hon yw mai'r ffordd fwyaf effeithiol o atal pobl ifanc rhag troseddu a sicrhau lles plant yng nghymru yw eu hatal rhag myned i'r system cyfiawnder ieuenctid yn y lle cyntaf
the main principle of this strategy is that the most effective way to prevent youth offending and to secure the welfare of children in wales is to stop them entering the youth justice system in the first place