The historical incident
The November 2019 bulletin concerns the suicide bombing at a Medan police-station carpark. The case illustrates that attackers may approach a guarded facility while blending into ordinary activity.
Workplace lessons
Strengthen access screening and vigilance around people, bags and vehicles. Train staff to report unusual behaviour discreetly and practise evacuation or sheltering appropriate to the threat, then review business-continuity arrangements.
Crowds, screening and the recorded outcome
The source dates the attack to 13 November 2019, describes a 24-year-old attacker entering among people seeking police clearance, and reports six injuries. It recommends sufficient screening and cameras for crowd surges, attention to ignored security instructions or unusual concealed objects, and travel contact arrangements with colleagues and families.