The research applies the TARDIS system security analysis and modelling framework to an adverse critical infrastructure system incident. This paper reports on the practical application of the framework to a case study based on an actual critical infrastructure system failure and the resultant implications for the system and the wider regional community. Then a reflective discussion is undertaken reviewing the TARDIS framework approaches employed within the blended hybrid approach incorporated into the framework, before speculating on future research areas of framework development and application.<br>