"There will be ongoing discussions on understanding the implications of Martyn's Law." So says the Impact Assessment accompanying the Terrorism (Protection of Premises) Bill which was introduced into Parliament on 12 September 2024.  This development may have caught some unawares, despite the efforts of Figen Murray, the mother of Martyn Hett (after whom the Bill is named), to keep the proposed legislation in the limelight. While the Bill's main impacts are likely to be on liability, including public liability and D&O, insurers, brokers and insureds will need to consider the detail of the Bill and its impact on coverage and exclusions in existing property and terrorism policies as well. These could be positive (for example, a reduction in premiums where it is recognised that premises represent a better rated risk as a consequence of having public protection procedures in place) or negative (for example, where there have been identified failings). Certainly, where available for enhanced duty premises and events, underwriters should be obtaining the information prepared for the Security Industry Authority as part of the presentation of the risk. Additionally, the greater awareness of the threat of terrorism could result in more property owners applying for terrorism-related insurance policies.