Pen Test Partners' Digital Forensics Expert Witness is a legal-focused forensic investigation service that supports criminal and civil legal proceedings by identifying, processing, and reporting on digital evidence. The service covers forensic analysis across a broad range of environments, including desktop computers, laptops, mobile devices, email servers, cloud environments, IoT, and ICS systems. In legal contexts, the service can be used to uncover evidence from digital devices belonging to suspects, or alternatively to support alibis and establish device usage at specific times and locations. The service operates under legal privilege frameworks, including legal advice privilege and litigation privilege, working alongside law firms in the UK. The forensic team provides expert witness statements and maintains chain-of-custody integrity to ensure that electronic evidence holds up to legal scrutiny. The service is responsive, with engagements available to begin with as little as one hour's notice. Consultants address challenges arising from hybrid working and cloud adoption, maintaining forensically sound methodologies for both internal and external investigations. The team keeps pace with anti-forensic techniques such as file encryption, disk ciphering, and ransomware that may be used to obscure digital evidence. Post-engagement support is included, with consultants remaining available for follow-up questions, queries, and ongoing guidance after an engagement concludes.