However, such a request should be approached in consultation with experts in public law, with a view to challenging any refusal or non-response. [
Fodd bynnag, dylid cysylltu â chais o'r fath mewn ymgynghoriad ag arbenigwyr mewn cyfraith gyhoeddus, gyda'r bwriad o herio unrhyw wrthodiad neu ddiffyg ymateb. [