Mae profi cyfresol yn golygu y byddai gofyn i staff yr Heddlu a nodir fel cysylltiadau agos â rhywun sydd wedi profi'n bositif naill ai hunanynysu fel arfer neu gymryd prawf llif unffordd (LFT) ar ddechrau eu shifft drwy gydol y cyfnod hunanynysu.
Serial testing means Police staff identified as close contacts of someone who has tested positive would be asked to either self-isolate as normal or to take a lateral flow test (LFT) at the start of their shift for the duration of the self-isolation period.