Unfortunately, we have to wait a long time until we finally get Season 5 (I think it will be around September or so).
Here is the CBS schedule for Criminal Minds reruns for June 2009.
6/3/09 - "Memoriam" written by Dan Dworkin & Jay Beattie
6/10/09 - "Normal" written by Andrew Wilder
6/17/09 - "Soul Mates" written by Debra J. Fisher & Erica Messer
6/24/09 - "Bloodline" written by Mark Linehan Bruner
Link: link