The public security organs have already imposed coercive measures on the suspect.
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In Chinese criminal procedure there are five ranked 强制措施, from lightest to heaviest: 拘传 (summons), 取保候审 (bail), 监视居住 (residential surveillance), 拘留 (detention), 逮捕 (arrest). 'Being taken into 强制措施' in news often means arrest.