[sheps]

Originally Posted by ///ajd

....selling drugs would be my first guess. Be careful.

You could see if the car has tax etc. and get the police interested that way if anything is amiss.

That would certainly explain the nature and frequency of the short journeys.
It never fails to amaze me how so many drug dealers ride around in showy cars, when surely you'd want to blend into the background -surely a rep-spec vectra or Mondeo would be a better bet?!

I'd call the police, play the "concerned son staying with parents" card and tell then exactly what's going on. You don't need to say what you think is happening - let them put two and two together.