This story has been made freely available as a public service to our readers. Please consider supporting SCMP’s journalism by subscribing.An independent committee investigating Hong Kong’s deadly Tai Po blaze holds its 21st day of evidential hearings on Thursday, with three witnesses from the Urban Renewal Authority set to give evidence.The tragedy at the Wang Fuk Court housing estate on November 26 last year claimed 168 lives and displaced nearly 5,000 residents.The blaze broke out while the...