7.7 Significance of Blood Alcohol Concentration (BAC) in Drink and Drive Cases

The pharmacology: the absorption-distribution-elimination (the BAC's curve); the Widmark's calculation (the dose's estimation). The impairment: the concentration-and-effects' correlation (the stages — the 0.05-and-0.08 thresholds' international lore); the individual variation's caveats. The legal faces: the limits' legislation (the offence's definition by the concentration — the per se laws); the testing (the breath — the screening; the blood — the confirmation; the instruments' calibration); the driver's rights (the compelled-testing questions — the consent-and-warrant debates); the Nepal practice (the traffic law's alcohol provisions — the breath tests' roadside use; the Motor Vehicles Act's-and-Rules' discipline).