My embarrassment is that the public, you and some others here, still are willing to fall for this cock and bull story, with no proven facts other than the current UK PM's assertion that "it is highly likely".
I presume you mean by "attending", you are referring to his contact with a man and a woman in distress, on a park bench, on the afternoon, in sleepy Salisbury?
At that point in time the "local bobby" heroically was assisting a couple, being sick and unconscious and "just happened" to be passing. He presumably went to find any id, as every local bobby does in such unusual cases.
He subsequently "developed" a deadly chemical weapon reaction and I suspect was never in contact with the two distressed Russians.
Unless of course the "local copper's" real identity is being withheld, he was not an off duty policeman, but a government watcher of a known double agent who may, because of his Russian daughters visit, was "of interest".
And every other drunk/druggie in the early afternoon in the UK.
You know perfectly well the only time the "local copper" attended/had physical contact with the pair was on the park bench.
Where in your link does it mention the "local copper's" dress in the park, where the two Russians were vomiting and unconscious?
"Det Sgt Bailey was admitted to Salisbury District Hospital, where doctors tried to find the right combination of drugs to fight the poison in his body.
At the same time, scientists at the Defence Science and Technology Laboratory - at nearby Porton Down - worked around the clock to find out what had poisoned him and the Skripals.
Doctors had to break the news to Det Sgt Bailey that he had been poisoned with Novichok.
Intensive care doctors at Salisbury hospital were faced with something they had not dealt with before and, according to Dr Duncan Murray, there was "a very real expectation" all three could die."
Your story seems to point, officially anyway, he would not have known. Being a "local copper" and going home to contaminate his loving wife and children after allegedly wearing a hazmat suit. Hence the heartbreaking giving up all their personal items, their house, their cars.
What syrup are you drinking today? The story has more holes than a Swiss Cheese.