Kaan = Police magnet

[HAULN-SS]

here's the basics of it - replace predator/prey with cop/kaan, and step size with tire revolutions per minute or whatever floats your boat.

<!-- m --><a class="postlink" href="http://math.bu.edu/people/bob/papers/towers.pdf">http://math.bu.edu/people/bob/papers/towers.pdf</a><!-- m -->

there's probably a better paper, this is just the first one I found.