An elderly woman who pasted materials containing pro-independence slogans and Hong Kong’s colonial-era flag outside her flat has been sentenced to three months in a maximum-security psychiatric institution for displaying seditious publications. West Kowloon Court ordered housewife Yang Chau-ki, 62, to undergo mandatory psychiatric treatment at the Siu Lam Psychiatric Centre on Friday. She was charged with knowingly displaying publications with seditious intent under Hong Kong’s Article 23...