Sampling Bias anyone???
"sort of computer-enabled criminals who plague Great Britain’s digital doings in the 21st Century." WRONG!
"sort of computer-enabled criminals who WERE CAUGHT plaguing Great Britain’s digital doings in the 21st Century." RIGHT!
This is an analysis of the failures - the ones Plod can catch.
We can assume the ones they haven't caught are brighter, better educated or better organised... or all those things.
Mind you, I'm a real Researcher, not an "academic researcher", whatever the fsck that is.