Challenging Digital Evidence Obtained through RoundUp and Torrential Downpour

This webinar discussed the technological background of peer-to-peer detection tools, while guiding the criminal defense bar through effective procedural and constitutional arguments that could warrant suppression of evidence.

Surveilled Without a Trace: Challenging Digital Evidence Obtained through RoundUp and Torrential Downpour in Criminal Cases

Prosecutors are employing novel and unproven surveillance software to investigate peer-to-peer file-sharing networks for criminal activity, seeking to link suspicious activity with internet IP addresses and subscriber information. The software suite, known as “RoundUp,” includes applications designed to monitor popular file-sharing platforms such as BitTorrent (e.g., “Torrential Downpour”) to conduct highly-intrusive digital surveillance. How can defense lawyers recognize the use of RoundUp or similar programs in a criminal case?

This webinar from August 11, 2020 featured Mohammad Hamoudi, Assistant Federal Defender for the Western District of Washington, Jeff Fischbach, founder and President of SecondWave Information Systems, and Robert Herz, the owner of the Law Offices of Robert Herz, P.C.


Webinar


Supplemental Materials

Featured Products

Explore keywords to find information

RECENTLY ADDED & UPCOMING

  1. The Champion
    March/April 2025 Cover

    March/April 2025

    What are the evidentiary implications of field sobriety tests in marijuana cases? Does the odor of marijuana give officers probable cause to search a vehicle?

  2. Amicus Brief
    March/April 2025 Cover

    Wilmer Cutler Pickering Hale and Dorr LLP v. Executive Office of the President

    Brief of the National Association of Criminal Defense Lawyers and New York Council of Defense Lawyers as Amici Curiae in Support of Plaintiff’s Motion for Summary Judgment.

  3. News Release

    Nation’s Defense Bar Reiterates Opposition to Actions Against Law Firms – Washington, DC (March 18, 2025)

    The National Association of Criminal Defense Lawyers (NACDL) remains deeply concerned over recent executive orders targeting law firms, most recently Paul Weiss and Perkins Coie, and repeats its call to uphold the right to counsel and the independence of the legal profession. Despite a ruling blocking the action against Perkins Coie, the administration has continued to target law firms representing disfavored clients and positions, threatening the right to a zealous defense.

  4. Live Event
    2025 Forensic Science & Technology Seminar Cover

    2025 Forensic Science & Technology Seminar

    "Making Sense of Science: Forensic Science, Technology & the Law"

    LOCATION: Sahara Las Vegas Hotel & Casino, Las Vegas, NV
    DATES: April 24-26, 2025

  5. Trials, Technology, and the Fourth Amendment: Case Law Review [Engage & Exchange]

    EXCLUSIVE NACDL MEMBER BENEFIT
    WHEN:
    Tuesday, April 29, 2:00-3:30pm ET / 11:00am-12:30pm PT
    CLE CREDIT: not available
    COST: Free