Steve K wrote:
There's a big ol' difference between whether it's sensible for the police to apprehend and/or prosecute, and whether you can be offended just because they didn't forewarn you.
But I can be offended if they lurk in places where it isn't sensible to prosecute with the sole intention of prosecuting because it's lucrative. I recall an instance a few years ago when some rare bird was spotted in the Scottish Highlands and apparently the police sat by the side of a road one night and booked about a hundred twitchers for speeding between midnight and 6am.
Louise