prBAS CEN/TS 18053-1:2026

This document provides guidance for technical and non-technical personnel within the organisation, including those responsible for compliance with statuary and regulatory requirements and industry standards. It provides an overview to the concepts related to the custody transfer lifecycle within the dCoC, framing how such personnel can identify and audit the custody ownership of CBRNE evidence; set policies and follow good practices for metadata governance, and conduct digital operations to ensure the integrity of the data at each custody transfer point. In addition to the metadata required to perform audits, the document also aims to provide: - Unambiguous definitions of the concepts related to the digital log for each custody transfer (i.e., who owns the custody at each transfer point). - Guidelines for a dCoC data governance process to ensure the integrity of the DCM and situational-awareness at each transfer point within the dCoC. - Suggestions regarding metadata management policies and compliance with good practices for non-repudiation digital log, ensuring a standard data structure for data management and auditing This document is the first part of a series of Technical Specifications on the provision of DCM services for the management of datarelated to the custody of CBRNE evidence. It will be complemented by other specific parts, which give more detailed guidelines for related services, such as the specification of BPMN processes for data governance within the dCoC.