You may have seen internet articles or videos suggesting how you can pass a breathalyzer test with flying colors even if you have drunk enough to be over the limit. Like much of what you find on the internet, it is best ignored.
The police are not dumb and will notice if you do not blow into the tube properly or try to distract the officer while getting your child to blow into the machine for you. Drinking mouthwash is not going to work either. It might even push your reading up because some mouthwashes contain alcohol.
Certainly not. The cheap ones you can pick up on the internet are not safe to rely on. If you check you are OK to drive with one of them, you could still blow over the limit on a police machine if stopped. It could be down to the inaccuracy of your device or because your blood alcohol limit has risen since you tested yourself.
If the police machine puts you over the limit, you can look at challenging it. These are sensitive machines and could read wrong for several reasons:
Courts know that Breathalyzer results can contain errors. If you get legal help to prove an error, you may walk out with your license intact.