However that tells us relatively little as the way alcohol sits in our body depends on:
- Metabolism (the rate your body uses energy)
- Type of alcohol consumed
- Concentration of alcohol drunk
- Food consumed
So How can we really assess if we are definitely legally safe to drive?
The most certain way of checking is using the same kit that the Police use to evidence, so that is either a blood test, not something that we really want to encourage, or breathalysing; something we think the general public who drink and use vehicles should never be without.