Look at your watch.
If you want to know the blindingly obvious ~ ask a copper.

Merseyside Police, within whose patch falls the John Lennon Liverpool Airport (Formerly known as Speke), have worked out that 2nd division felons, who feel that the rozzers may be after them, are nipping abroad using cheapo airlines.
Blimey

I wonder if Miss Marple gave them a clue?
http://uk.reuters.com/article/lifestyleMolt/idUKL1382760520080313