‘Dark forces’ behind Lam attack: ChaoNATIONAL SECURITY ISSUE: Attacks against advocates of democracy would happen again if the masterminds are not identified, DPP Legislator Chao Tien-lin saidBy Jason Pan / Staff reporterDemocratic Progressive Party (DPP) Legislator Chao Tien-lin (趙天麟) yesterday called on law enforcement authorities to treat the recent paint attack on Lam Wing-kei (林榮基), a former co-owner of Hong Kong’s Causeway Bay Books, as a national security matter. The dark forces behind them will continue to operate from abroad, out of reach of our laws, and they will continue to pose a danger to democracy activists,” he said. Democratic Progressive Party Legislator Chao Tien-lin, left, and former Causeway Bay Books co-owner Lam Wing-kei talk to reporters at Chao’s legislative office in Taipei yesterday. Photo: Wang Yi-sung, Taipei TimesChao invited Lam to attend yesterday’s briefing, along with Criminal Investigation Bureau Deputy Commissioner Liao Hsun-cheng (廖訓誠) and officials from the National Security Bureau’s (NSB) Third Department. Chao said that Lam was not the only Hong Konger to be attacked in the past few years.