Mr. Speaker, it is good to debate a bill in order to try and find arguments that will allow the legislation to be implemented.
People must be qualified and competent. We need screening devices such as the breathalyzers used to measure blood alcohol level some time after alcohol is consumed.
As the member for Brome—Missisquoi said about drugs, there could be a problem if passengers in the same vehicle have used drugs and inhaled the smoke. The driver could be affected by the passengers' drug use, even if he or she did not use drugs.
Take the example of someone hospitalized for surgery. The morphine prescribed for pain relief by the doctor could stay in the patient's blood after he or she is discharged. If the patient drives after leaving hospital, his or her blood could contain traces of morphine. Remember that this is a drug the doctor prescribed. What would happen in this case?