PDAs (personal digital assistants) is a descriptive term in legal practice for handheld electronic devices used to create, store or transmit information, including legacy PDAs, smartphones, mobile phones, pagers and comparable mobile devices. The term is not generally defined in UK or Irish legislation or case law; statutes and guidance more commonly refer to mobile telephones, electronic communications devices or digital devices.
In practice, PDAs feature in disclosure/eDisclosure and digital forensics (messages, emails, call logs, documents, images and location data), workplace monitoring and BYOD policies, data protection and privacy compliance (UK GDPR and the Data Protection Act 2018; the Data Protection Act 2018 (Ireland)), cyber security and acceptable use, and in search, seizure and production orders. Their portability, connectivity and capacity to hold substantial personal and confidential business data drive obligations around lawful processing, retention, encryption, access controls, incident response and chain of custody.
Usage is broadly consistent across England & Wales, Scotland, Northern Ireland and Ireland, though procedures and powers for device search and imaging vary by jurisdiction. Contemporary drafting often prefers mobile device or smartphone; older contracts, policies and case materials may still use PDA to encompass phones, pagers and similar handheld equipment.