This past September I posted some Forensic Science Resources for Teachers. Forensics is interesting, engaging, and students love it.
Here are some more:
http://phs.psdr3.org/science/forensics/ - course page for high school forensics class. Has lesson ideas, syllabus, resources and more.
http://nrhs.nred.org/www/nred_nrhs/site/hosting/Rubins/main%20page.htm - high school forensics class site. labs, syllabus, resources, and more
http://wsfcs.k12.nc.us/Page/20284 - high school forensics class site with assignments, projects, rubrics and more.
http://sciencespot.net/Pages/classforsci.html - Forensic Science lesson plans and resources
http://sciencespot.net/Pages/classforscilsn.html - Forensic Science lesson plan links