Decreto-Lei n.º 159/2019, de 24 de outubro, Diário da República n.º 205/2019, Série I de 2019-10-24, páginas 3 - 24, Aprova um regime jurídico do exercício da atividade de segurança privada armada a bordo de navios que arvorem bandeira portuguesa e que atravessem áreas de alto risco de pirataria

This decree establishes the legal framework for using armed private security services on ships flying the Portuguese flag. It specifically addresses security measures for vessels navigating through high-risk areas prone to piracy. Maritime companies operating Portuguese-flagged vessels and private security providers will be affected by these rules, which govern how armed personnel can legally operate at sea to protect against piracy.