Contractors for a renovation project at the site of Hong Kong’s deadliest fire in decades got away with covering up the use of substandard material because of systemic defects in government supervision, a public inquiry into the blaze that claimed 168 lives has heard.In the first of a series of evidential hearings, a judge-led independent committee was told on Thursday that six “human factors” led to the almost complete failure of fire safety measures at Tai Po’s Wang Fuk Court before seven of...