The Supreme Court of the Philippines has issued a landmark ruling explicitly defining 'red-tagging' as an act that threatens an individual's constitutional rights to life, liberty, and security. This definition was provided in a 39-page decision authored by Associate Justice Rodil Zalameda. The court's decision, which granted a writ of amparo to a red-tagged activist, marks the first time a Philippine court has explicitly defined red-tagging, providing a legal basis for individuals to challenge such accusations. The court described red-tagging as involving the use of threats and intimidation to discourage perceived subversive activities.