Off-duty Wrexham PC Cath Parry had no hesitation in tackling a dangerous man with a knife who entered a shop while she was out with her mother-in-law in Oswestry.
Wnaeth yr heddwas o Wrecsam, Cath Parry, ddim oedi am eiliad wrth fynd i'r afael â dyn peryglus gyda chyllell a aeth i mewn i siop tra roedd hi allan gyda'i mam-yng-nghyfraith yng Nghroesoswallt.