Ages 9-13:
Establish Clear Rules

Be clear. Set rules and expectations for your children regarding drugs and alcohol. Clearly establish that you will not tolerate certain behaviors that can put their health and safety at risk.
Encourage positive behaviors and choices. Ask for their ideas, and listen to them. Help them break their problems down into smaller pieces and remind them of times they’ve succeeded. Remind them that they’re important to you by remembering what they say. Let them know you think about them even when you aren’t there.
Enforce the consequences. Kids will often begin to test your rules, it's natural. However, if a rule is broken it's important that you not let it slide.
Set rules and expectations for your children regarding drugs and alcohol.