Question about speed enforcement

[CommanderJameson]

A colleague of mine tells me that there are wide variations in NIP enforcement rates; specifically, that certain areas will only chase up about 50% of the posted NIPs that aren't responded to, whereas other areas will follow up in 100% of cases.

I think he's getting the wrong end of the stick, and is risking an MS90 due to S172.

Can anyone confirm/deny?

[vonhosen]

CommanderJameson said:

A colleague of mine tells me that there are wide variations in NIP enforcement rates; specifically, that certain areas will only chase up about 50% of the posted NIPs that aren't responded to, whereas other areas will follow up in 100% of cases.

I think he's getting the wrong end of the stick, and is risking an MS90 due to S172.

Can anyone confirm/deny?

I'm sure there will be some regional variations, but betting on it is just that, gambling.