In-car breathalysers

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No alcohol for at least 8 or even 12 hours before driving

Most folk don't drink 8 hours before driving but that does not mean Zero alcohol 

I suppose it will not be long before the clever Chinese come up with a battery powered fan blowing down a small tube to circumnavigate the drivers breath containing alcohol.

Hi All, feeling a bit Johnny Nash so if it helps;

SYSTEM OPERATION
From a breath sample, the Alcolock® measures the amount of alcohol present which must be under a pre-set level to enable the vehicle to operate. The Alcolock® can be configured to accommodate any level from zero alcohol present, through to the legal limit, depending on the policy of the company or organisation. In the event of the Alcolock®detecting an excessive alcohol reading and the vehicle being immobilised, the system will re-set itself and be ready for a further breath sample to analyse. As soon as the Alcolock® reads a sample under the pre-set limit the vehicle will start and be able to operate normally.

I wonder if it is clever enough to only allow a sample from the person sitting in the driving seat? If someone gets out of the driving seat is it automatically reset? It crossed my mind that a passenger, who had not been drinking, might give the sample? To the majority of people this would seem a stupid thing to do but I was once told by the wife of someone with a drink problem that he was well able to handle the car when he had, had a good drink because he was used to it!!!! 

David

As already stated, the drug driving problem is more of an issue than alcohol.

Anyone can blow into these (passenger etc) and if they were to become widespread, anyone so inclined would purchase a device to blow air into the machine.

Best policy - hang 'em high.

Hmmm. Must remember to inflate some balloons before nipping in to the pub.  

I was once told by the wife of someone with a drink problem that he was well able to handle the car when he had, had a good drink because he was used to it!!!! 

There is a degree of truth in that David. Not that it is a good thing to do

I can’t find myself having any nice thoughts about people who drink and drive. It’s just so unnecessary in this day and age where there are lots on none alcoholic drinks available. Society is lucky if they only kill or injure themselves, but sadly it’s all too often innocent others who get caught up. ☹️

“none alcoholic drinks”

An oxymoron, surely? 😀