• •Federal and NSW police confirmed that over 100 threatening letters have been sent to MPs and community leaders since 2015.
• •Investigators have established a long-term pattern of harassment, yet the author—referred to as 'Scorpio'—remains unidentified.
• •While police have now issued a public appeal for information, the specific content of the threats and the methods used to evade detection remain largely undisclosed.

Australian federal and state police are intensifying the hunt for an anonymous individual who has targeted high-profile figures with threatening mail for nearly a decade. The investigation follows a sustained campaign that has reached over 100 recipients since the correspondence began in 2015. While authorities have now moved to seek public assistance, the author’s ability to remain anonymous for eight years suggests a high level of operational caution. If investigators do not identify a lead from the new public appeal, the case will likely remain a significant test of how effectively law enforcement can trace non-digital harassment in a high-security environment.