prevention better than cure...for airline drivers here in the tropics the national regulator's mandate; 100% BAT for every crew on every flight before one can even look at the ships papers. Failing/refusing the breath analyser (only a zero readout is pass) anchors the protagonist with imm effect. For a first time offence its a three month hiatus, docking of pay, and the regulator being informed.
In case of repeat, kiss ur license goodbye!
The BAT procedure pretty crisp and fool proof with no avenues to bypass!
been quite effective imho.