Sources inside the force told The Sun that the mission was initially entitled ‘Operation Bunter’ - which some feared could draw unflattering comparisons with Billy Bunter, a pupil at the fictional Greyfriar’s School made famous in the 20th century children’s stories written by Charles Hamilton.
Bunter, depicted in illustrations - and in a 1950s television adaptation - as an overweight teenager, is regularly portrayed as greedy, lazy and deceitful.
“Several people pointed out the foolishness of calling it after a fat, posh English public schoolboy - not least given the PM is known for being a bit portly,” the Sun’s source said.
Instead, ‘Operation Aeration’ was chosen to avoid “some sort of diplomatic incident,” they added.
A Police Scotland spokesperson said: “Operational names are auto-generated by computer and can be changed if deemed to be inappropriate.”