How do I get my licence back?

I have had a clean driving licence for 46 years, never been stopped or charged with any offence. I recently applied to renew my HGV licence and got a letter back saying my full driving license is revoked...

Self-assessment

Is there an alcohol test meter you would recommend, please? I seem to remember there was one described in your column only a few weeks ago. What was that one, please, and is it the one you would recommend...