Cannabis 101

Risks while driving impaired by a drug

When you drive a vehicle, your brain needs to be alert and focused. Even small amounts of a drug can affect your ability to drive safely. Different drugs act on your brain in different ways, but almost all affect your:

  • attention
  • judgment
  • motor skills
  • reaction time
  • decision-making skills
  • balance and coordination

Serious accidents can easily happen when you drive while impaired by a drug. Many drivers who have collisions may have both drugs and alcohol in their system. Police can test drivers for alcohol-impairment using breath tests. Police across Canada trained as drug recognition experts have the tools and ability to determine if a person is impaired by drugs.