Volatile memory meaning

In legal practice, volatile memory describes temporary computer memory that needs power to retain data and is lost on shutdown. It typically includes random access memory (RAM) and cache. The term is a technical, descriptive expression used across criminal investigations, digital forensics and civil disclosure/eDiscovery, rather than a concept defined in statute or case law. Key features and uses: - May contain high‑value, short‑lived evidence (for example, running processes, logged‑in sessions, network connections, clipboard contents, and encryption/decryption keys). - Not captured by standard forensic imaging of storage media unless a live memory acquisition is performed. - Powering off a device can irretrievably destroy this data. Practical significance: - Investigators and litigants should consider whether a lawful, proportionate live capture is necessary before shutdown, mindful of authority (for example, warrants and powers under PACE in England and Wales) and chain of custody. - In civil matters, preservation obligations and disclosure/discovery duties (for example, PD 57AD in the Business and Property Courts; Scottish commission and diligence; discovery in Northern Ireland and Ireland) may require early expert input to assess feasibility and proportionality of capturing volatile memory. Usage and understanding are broadly consistent across England & Wales, Scotland, Northern Ireland and Ireland.