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Law Enforcement & Surveillance

We advise some of the world’s most prominent technology companies on their rights and responsibilities in responding to requests for user information from law enforcement, criminal defendants, and civil litigants.

Our team includes recognized thought leaders who have published articles, taught courses, and trained state, federal, and international law enforcement on laws related to lawful access to subscriber data. We handle Electronic Communications Privacy Act (ECPA) issues daily and bring deep, practical experience to every matter.

We also advise clients on developing subpoena compliance programs and playbooks. Whether the issue involves CALEA, ECPA, FISA, or RIPA, or determining how best to refer a case to law enforcement, we help clients navigate complex obligations efficiently and effectively.

Clients rely on us for our detailed knowledge of the justice system, strong relationships with law enforcement, and extensive experience supporting in-house law enforcement response teams.

Our Capabilities

  • Policy & Process Development – Create and implement consistent compliance policies, review individual legal process, and interface directly with law enforcement.
  • Litigation Support – Manage compliance-related litigation, including motions to compel, motions to quash, and protective orders.
  • Cross-Functional Coordination – Advise on privacy, security, customer service, tool development, and public policy.
  • Global Compliance Frameworks – Develop and implement both U.S. and international law enforcement compliance principles, policies, and procedures that allow clients to address surveillance laws, blocking statutes, and data retention requirements.
  • External Engagement – Represent clients before key external constituencies including law enforcement entities, other government agencies, congressional bodies, and industry groups.
  • Challenging Process – Challenge overbroad or inadequate law enforcement process and non-disclosure orders.
  • Transparency & Audits – Assist in preparing transparency reports and audit compliance files.

Billing That Works the Way You Do

We aren’t a typical law firm and we don’t bill like one either. We customize our billing practices to fit each client’s needs—building flexibility, transparency, and trust into every engagement. Whether through flat fees, monthly retainers, or competitive hourly rates, we focus on delivering clear value and predictable results, so you can plan confidently and stay focused on what matters most.

  • <h5>MONTHLY RETAINERS</h5>
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    MONTHLY RETAINERS

    We handle all of the legal work in a given area or subject matter for a monthly retainer, which we can adjust upward or downward as the work ebbs and flows.

  • <h5>FLAT/PROJECT FEES</h5>
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    FLAT/PROJECT FEES

    Under this model, we take the risk that we have underestimated the time that needs to be spent. If it takes longer, you still don’t pay more. If we are very efficient, we get the benefit of our efficiency.

  • <h5>COMPETITIVE HOURLY RATES</h5>
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    COMPETITIVE HOURLY RATES

    Because we work collectively to solve your problems, a majority of our attorneys are available for the same hourly rate, except our Fellows and Junior Attorneys who bill at lower rates and are perfect for tasks you don’t want to pay a legal veteran to do.

What clients are saying...

“I always feel like I get a calibrated response from ZwillGen on how to deal with particular types of issues. I think they are a friendly bunch of lawyers and do top notch work in terms of client service.”

Chambers Respondent

“ZwillGen provides a rapid response, dependability, quality service, and knowledge in the subject matter.”

Chambers Respondent

“ZwillGen specializes in all things privacy and data security. We use them for all of our privacy litigation and I find their advice to be extremely practical, business-friendly, and easy to implement.”

Chambers Respondent