Guide · updated 1 September 2026

Group chats, attribution and third parties

A group conversation raises two problems a one-to-one chat does not: establishing which of several people said the thing you rely on, and producing a record full of people who have nothing to do with the case.

Attribution is harder, not easier

In a one-to-one chat there are two possibilities and the question is usually which device. In a group there may be forty participants, display names that changed over time, numbers not saved in the exporting phone’s contacts, and people who left and rejoined.

• Display names are not identities. They are what the exporting phone had saved, and they can be changed by the account holder or edited in the exporter’s own contacts.
• Unsaved participants appear as numbers. That is often more useful than a name, because a number can be tied to a person by other evidence.
• Names can shift mid-conversation as contacts are saved or renamed, so the same person may appear under two labels in one transcript.
• Group membership changes. Someone who left before the material exchange was not there for it.

Where attribution is in issue, look outside the transcript. A number tied to a person by a bank record, a signed document, an admission or a call log does more work than any display name.

Third parties in the record

A group chat contains the personal data of everyone in it — numbers, names, photographs, and whatever they happened to say. Most of them are strangers to the dispute. Filing the conversation puts all of that on a court record.

Points to consider with your advocate:

• Is the group conversation the right record at all? If the material exchange also happened in a one-to-one chat, that chat may be the cleaner exhibit.
• Does the whole period need producing? Relevance is the test, but so is completeness — producing a narrow window invites the argument that the surrounding context was unhelpful.
• Should anything be redacted? Content of unrelated participants bearing on no issue is the usual candidate.
• Redact visibly. A redaction that is disclosed is a decision the court can rule on; one that is not is an alteration of the record.

Redaction and the hash

This is the trap. Redacting the transcript changes the file, which changes the hash, which breaks the certificate. The two cannot both be done to the same file.

The workable sequence is to certify the export as it is — hash the unmodified file, complete the certificate against it — and treat any redacted version as a separate document produced for a stated purpose, disclosed as redacted, with the unredacted certified record available to the court. What must not happen is a redacted file presented under a hash computed before the redaction, or a hash recomputed after it and presented as the hash of the original.

Practical points

• Export the whole group conversation, and take the export from a participant’s own device.
• Record the participant list as it stood, since membership changes and the export shows only who spoke.
• Number every entry, so a pleading can cite an exact line spoken by an exact participant.
• Note where a sender appears only as a number, and be ready to say who it is by other means.

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This guide explains procedure and states the law as we understand it. It is not legal advice, and Aarohan Enterprises is not a law firm. Whether a court admits a particular record, and what weight it gives it, is for that court to decide. Have an advocate settle anything you intend to file.