This job or a very similar one appeared a while back. Presumably there is a similar temporary need for extra hands. If I was interested, there are a series of questions that the advert raises in my mind. Basically they want a typed and current police line pilot, but they don't say when or for how long. Any such pilot would need to fit it in around his other commitments.
It seems to be written by a HR bod, so things get expressed very differently from how would be normal in aviation, in my experience. Much easier, if they quoted a day or shift rate (or even a rate for a cycle of shifts on the roster).
I guess there will be few suitable candidates on the Emerald Isle, so non-chargeable flight transport costs will be a big variable that the job description does not allow a candidate to estimate.