Method and system of deploying ignition interlock device functionality

A computing system for deploying an ignition interlock device (IID), the computing system comprising:

• a processor;
• a memory storing a set of instructions, the instructions when executed in the processor causing operations comprising:
• receiving a time series of breath alcohol content (BrAC) measurements that are unitarily sourced from a pre-identified user, each BrAC measurement of the time series including an alveolar breath component and an interferent breath component;
• estimating a dissipation rate of alcohol attributable to the pre-identified user in accordance with the time series of BrAC measurements;
• determining, responsive to estimating the dissipation rate of alcohol, at least a subset of the BrAC measurements as attributable to the alveolar breath component but not the interferent breath component;
• and
• performing one of triggering and not triggering the IID into a lockout state based on the at least a subset of the BrAC measurements.