>Wiktionary probably isn’t the most useful source of information here.

Okay but neither was the original parent.

From their link:

>Bailiffs are allowed to force their way into your home to collect unpaid criminal fines, Income Tax or Stamp Duty, but only as a last resort.

> If you do not let a bailiff in or agree to pay them:

> - they could take things from outside your home, for example your car > - you could end up owing even more money

That sounds like law enforcement powers.

It sounds like the difference is:

> If they are presenting themselves as police officers then it is very much to their advantage to do so, as people are much more likely to let them into their home, and generally to do what they’re told.

Which would have been nice to be told in the original comment so I couldn't figure out what subtlety distinguishes bailiffs from police officers.