Preserve what you can lawfully access now, and speak with a defense lawyer before changing app settings, contacting the other person, or sending copies to anyone. A disappearing-message setting may remove content from an app after a timer or after viewing. It does not tell you what still exists on another device or with a service. No app can be assumed to recover an expired message. A screenshot may help document what you saw, but the original conversation and its context may matter more than one isolated image.
This is a practical preservation checklist for an accusation involving messages. It is not a direction to investigate another person’s account or to collect unlawful sexual material.
Record the conversation as it appears to you
If the messages are still visible in an account you are authorized to use, note the app and account, the other participant’s displayed name and handle, the date and time shown, and whether a disappearing timer or screenshot notice appears. Preserve the surrounding exchange, including messages before and after the disputed words. If the app permits a lawful export of your own conversation, ask counsel whether to use it and keep the unaltered export. A clear screenshot of visible messages may be useful when time is short; include the surrounding screen and date or time where possible, and keep the original screenshot file. Do not edit screenshots or present a montage as the original conversation.
If a message has already disappeared, write down what you personally recall, when you saw it, which account and device displayed it, and what you cannot remember. Separate your memory from any saved image or another person’s account. Do not recreate a message to fill the gap.
California Evidence Code section 250 broadly defines a writing to include recorded words, images, sounds, and electronic communications. Sections 1400 and 1401 address authentication: a party offering a writing generally needs evidence that it is what the party claims. Saving account, device, timing, and context details can help counsel investigate authenticity. These sections do not mean every screenshot is admissible or that a missing original makes every copy useless.
Keep the device and account history intact
Make a simple inventory for counsel: phones, tablets, computers, synced accounts, backups you control, app names, usernames, and devices that displayed the exchange. Include the approximate time zone, whether your device clock was correct, and any recent phone replacement or account migration. Keep the devices available. Avoid clearing app data, resetting a device, uninstalling an app, changing retention settings, or experimenting with recovery tools before counsel reviews the situation. Such changes may remove useful context or create confusion about what existed when.
Store any files securely and limit access. Keep a record of who received a copy and when. If you need to change a password for account security, tell counsel when and why; do not share credentials publicly. The California Judicial Council’s electronic-evidence report explains that converting native files can lose associated information, and that courts consider secure storage and access. It is guidance about court systems, not a guarantee that a particular app retains recoverable messages.
Preserve context without contacting the accuser
Other lawful records may help establish when and how a conversation happened: your call history, contemporaneous calendar entries, travel or location records you already possess, and names of people who saw messages on your device. Keep these in their existing form and tell counsel what each record can and cannot establish. A recipient may have a different copy or different visibility, but do not ask the accuser or a protected person to send messages, change a statement, or turn off deletion. If a no-contact or protective order exists, follow it. Counsel can assess lawful ways to seek third-party records; access, privacy, and availability depend on the source and the case.
Treat sexual images and private material with special care
If the exchange includes intimate images, suspected material involving a minor, or material you may not lawfully possess, do not copy, forward, upload, or show it to others as a preservation shortcut. Tell a lawyer promptly what you encountered and where it is so the lawyer can advise on lawful handling. California Penal Code section 311.11 addresses possession or control of certain material depicting a minor; whether it applies depends on the material and circumstances. Do not make your own legal classification from a thumbnail or accusation.
The firm’s sex-crime defense page covers the broader defense context. For a case-specific plan to preserve an expiring exchange, contact the Law Offices of David S. Chesley at (800) 755-5174.