Mae profi rheolaidd yn golygu y gofynnid i staff yr heddlu naill ai hunanynysu fel rhan o'r drefn NEU gymryd prawf llif unffordd (LFT) ar ddechrau eu shifft am hyd y cyfnod hunanynysu. Gall y rhai sy'n cael canlyniad negatif barhau â'u gweithgareddau arferol; rhaid i'r rhai sy'n profi'n bositif hunanynysu ac archebu prawf cadarnhau.
Serial testing means police staff identified as close contacts 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. Those who test negative may continue with their normal activities; those who test positive must self-isolate and book a confirmatory test.