Instigation means luring the accused into a crime that he, otherwise, had no intention to commit, in order to prosecute him.[26]
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In instigation, the law enforcers act as active co-principals. Instigation leads to the acquittal of the accused, while entrapment does not bar prosecution and conviction. [30]
http://sc.judiciary.gov.ph/jurisprudence/2011/february2011/178060.htm