The Police sirens don't
but the Fire Brigade's sirens still do.
(
Kerrisis There's someone in my head, but it's not me., Sat 14 May 2011, 14:39,
Reply)
or that police still blow whistles.
(like in Bourne Ultimatum)
(
JamTallons, Mon 16 May 2011, 13:00,
Reply)