This article is from the can.talk.guns FAQ, by Skeeter Abell-Smith firstname.lastname@example.org with numerous contributions by others.
"Handgun Regulations, Crime, Assaults, and Homicide: A Tale of Two
Cities" (Sloan et al) compared Vancouver and Seattle after the 1979
Canadian gun laws, but Vancouver also had lower murder rates _before_
the new gun laws. Many other factors were also ignored.
Much has been written to rebut this "study". There is a lot of
information on this in the t.p.g Usenet group's
``The Long List of "Gun-Control" Myths'', available from:
and in "Guns in the Medical Literature -- a Failure of Peer Review"
("Why are the Black and Hispanic homicide rates so high in Seattle?"),
which is available from