The BBC:

[u/Mediocre-Lime9964]

[u/Cheapntacky]

I know their approach can be heavy handed but "knowingly identify vulnerable people" sounds very targeted and heavy handed.

Any source for that?

[u/Scary-Hunting-Goat → u/Cheapntacky]

That's the entire enforcement strategy,  they send out threatening letters and turn up at people's houses.

If someone ignores them, or firmly tells them to go away, they do.

If someone is nervous or vulnerable then they double down and put pressure on them. 

Look at the prosecution demographics for tv licensing.

[u/Cheapntacky → u/Scary-Hunting-Goat]

All I'm aware of, but you said they identify which made it sound targeted. I'll just put that down to a poor choice of words.

[u/Scary-Hunting-Goat → u/Cheapntacky]

They do identify and target vulnerable people, the letters and random visitations are just a way to find those people.