Not that I listened to loads of interviews or anything but the PEACE model calls for both rapport building and also ensuring understanding.
Statements made by the old bill probably would refer to near side and off side, because they are the most accurate way of describing the sides of a vehicle ( drivers and passenger side being good for probably about 95% of cars, 70% of HGVs and 0% of motorbikes). Likewise most rozzers’ statements would probably start by describing all the vehicles involved in full ( a marked police van, an unmarked police car, a Vauxhall Astra hatch back car car) and then number them off as say Vehicle 1 to whatever then refer to them like that for the rest of the statement.
So in an interview the interviewer should use terms understood by the subject of the interview. You might, I imagine, hear. So the officer said she saw you get out of the ‘near side front door, that’s the front passenger door, ‘ probably.
Police statements are documents designed to be presented to a court in order to present the evidence in the most unambiguous way. They aren’t supposed to be flowing prose ( even if acts of creative writing…) like witness statements taken from anyone they are supposed to use the language and vocabulary used by the person who’s evidence they are. A cop who didn’t know the difference between off side and near side would be particularly thick.