We had our collar felt by the Police Boat last weekend as we chugged up to the cruise terminal to see some relatives off on a cruise at around 10 kts. Particularly galling when over the other side there were 3 small speed boats batting southwards at about 30kts! However, I suppose overtaking the Police boat didn't help my case!
Anyway they were very polite and explained that security in that area is getting tighter and with Marchwood and the cruiseliners being potential terorist targets its easier to stop and check people out at 6kts than 30kts. Although the officer did say they couldn't catch everything. I always understood it was anything north of Hythe pier that was in the limit and,yes, I guess the Red Jet has dispensation.
The small boat they caught after us was coming towards them at very high speed and that warranted flashing blue lights and the siren. That resulted in the black book being opened up not just a friendly word.