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ISP Logs and Third-Party Reports in Prosecutions

The use of internet service provider logs and third-party reports in prosecutions, and the implications for Fourth Amendment concerns and suppression fights.

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Jan 6, 2026

How have courts ruled when CSAM prosecutions relied primarily on ISP logs or third‑party provider reports?

Federal courts are split on prosecutions that rest mainly on internet service provider (ISP) logs or third‑party reports: several circuits treat provider matching and tips as permissible leads that do...