How Do Communications Records Affect Litigation Posture?

Once litigation is reasonably anticipated, a duty to preserve communications arises. Destruction or negligent loss of records after that point can trigger court sanctions, adverse inferences, or even default judgment. Courts treat intentional destruction far more harshly than inadvertent loss, but both carry risk. If your organization failed to implement a litigation hold on email and messaging systems when a claim emerged, the opposing party may argue that critical messages were discarded and seek an adverse inference instruction at trial, effectively telling the jury to assume the worst about what those messages contained.

New York courts require that communications be authenticated before admission into evidence, meaning a party must establish that the message is genuine and came from the claimed source. Typically, this is done through testimony from someone with personal knowledge of the communication or through a custodian of records who can verify the integrity of an email archive or phone log. A common pitfall occurs when parties submit screenshots or printouts without proper foundation, leading judges to exclude them as hearsay or unauthenticated. Establishing a clear chain of custody and having a qualified witness ready to testify about how messages were preserved, retrieved, and stored protects admissibility and avoids last-minute exclusions that can cripple your case.

Courts do not require perfection, but they do require reasonableness. A party must identify key custodians, select appropriate search terms tied to the claims and defenses, and apply those searches across email, messaging platforms, and document repositories. Failing to search personal devices or excluding entire custodians because they left the company is a common vulnerability. Best practice is to document your search methodology in writing, including the custodians searched, the date ranges, the keywords used, and any limitations. This record protects you if the opposing party later challenges the adequacy of your production.

Attorney-client privileged communications and attorney work product are not discoverable, but the privilege is easily waived. An email to your lawyer about litigation strategy is protected; forwarding that same email to a business colleague or third party waives the privilege for that message. Similarly, communications made in preparation for litigation at a lawyer's direction are work product, but routine business emails discussing the same topic are not. If you routinely copy lawyers on business communications, you may inadvertently waive privilege over entire email chains. Conversely, if you work closely with counsel to prepare a litigation response, that collaboration can be shielded. The key is intentionality: communications should be routed to counsel only when legal advice is sought, not as a blanket practice.

Preservation means maintaining communications in their original form and with metadata intact. When you export emails, use the platform's native export function rather than printing or screenshotting. Native exports retain metadata such as sender, recipient, date, time, and read status, which courts use to authenticate messages. For text messages and messaging apps, request a certified export from the platform or use a forensic tool that captures the full record. If you anticipate litigation, issue a litigation hold notice to all relevant custodians instructing them not to delete messages, and implement a technical hold on email systems to prevent automatic purging of deleted items. This combination of legal notice and technical control demonstrates good faith and protects against adverse inferences.

Cross-examination and foundation challenges are your primary tools. If opposing counsel offers a text message purporting to be from your client, you can demand testimony about how the message was obtained, whether the phone was secured, and whether the opposing party can prove it was not altered or fabricated. For emails, scrutinize the headers and metadata; if the opposing party cannot produce the full header or the email appears to have been forwarded multiple times, its authenticity may be questionable. If a communication is hearsay and the opposing party has not established an exception, object on hearsay grounds. Many trial judges will exclude communications that lack proper foundation, so aggressive authentication challenges can remove key evidence from the jury's consideration.

Begin by creating a written record of significant events and decisions as they occur. Contemporaneous notes often outweigh later recollection and can corroborate or contradict communications. If a conversation happens by phone, follow up with an email summarizing what was discussed and what was agreed. This practice creates a paper trail and protects you if the other party later claims the conversation never happened or meant something different. Store these records in a secure, backed-up location and ensure your organization's IT systems are configured to retain email and messaging records for a reasonable period. If your industry or regulatory framework imposes specific retention requirements, comply with them; courts view compliance with legal retention standards favorably when disputes arise.