alcohol tests

[Connemmara]

I am going away for a few days and expect to be drinking - however on my way back I want to ensure there is no alcohol in my system. Cant you buy these things from a chemist or whatever that will you give you a count of alcohol taken.

[ummmm]

Yea you can but they are not as accurate as the proper ones.

Don't know where you get them from.

[Connemmara]

thanks for that example.