Describe the issue
Explain what is disputed, why it matters and any known deadline. Identify the relevant people, organisations, account providers, devices and date range. Distinguish what you personally observed from what someone has reported. If a solicitor is instructing, identify the proposed instruction and the questions requiring technical examination.
Describe the evidence and changes
List available native messages, screenshots, exports, backups, archives and correspondence held elsewhere. Note deletion, migration, repairs, password resets, account closure or other significant changes. Include the source and collection history of material already supplied. Exact technical details can follow; an honest unknown is preferable to a confident assumption about how a file was created.
Agree the route before transfer
Do not send passwords, one-time codes, recovery keys or full evidence through the general enquiry channel. Identity, authority, conflicts, confidentiality needs and scope should be addressed before arranging evidence transfer. Costs, deliverables and timescales are agreed for the actual instruction; an initial feasibility stage may be appropriate. Preserve current material without unnecessary conversion or repair, while coordinating any urgent account protection with those authorised to act.