Gerry Horkan (Fianna Fail) | Oireachtas source

For example, someone could get an antigen test at lunchtime on a Friday, fly out on Saturday morning and fly back Saturday night or early Sunday morning and still be within the 48-hour window. If it was a PCR test taken on Friday morning, that person could come back Sunday evening. This may be a question for the Department of Health. While the announced restrictions have to do with the seven scheduled states and trying to ensure that people who have been away for a long time do not bring Omicron back with them, what is the purpose of the short-term restrictions? Someone could fly over, possibly get infected in a jurisdiction that has less regulation and less mask wearing than we have and then return where the piece of paper would be checked by the airline or whoever, assuming it is the 10% that gets checked. How are we catching people who get infected in that short window?