Safety Program for Elementary schools

[DaisyMay]

I'm a School Crossing Guard and Safety instructor for my area police department. I teach about strangers safety, Bicycle safety, Stealing, If you find a Gun, and Computer safety. I've been trying to update my program. I go to all area schools and teach from K-4th grade, for 30 minutes, for 3 days. Does any one have a program like this in their schools? And if so what videos are they using. Would really love some feedback. Thanks