The agency may determine not to proceed with the application where, for example, it had information to indicate that doing so could be harmful to the welfare of the adopted person and others.
Efallai y bydd yr asiantaeth yn penderfynu peidio â bwrw ymlaen â'r cais, er enghraifft, os oedd ganddi wybodaeth i ddangos y gallai gwneud hynny fod yn niweidiol i les y person mabwysiedig ac eraill.