Former Prosecutor Insight. Defense Built with Precision.

Facing a criminal investigation or charge can create immediate uncertainty, reputational risk, and significant personal pressure.
John Halverson provides disciplined, strategic defense representation in complex and high-exposure criminal matters, guiding clients through the legal process with confidence, discretion, and steady courtroom advocacy.

John provides strategic representation across a range of criminal and sensitive legal matters, including:

Former Senior Suffolk County Prosecutor

Decades of Serious Trial Experience

John Halverson brings extensive courtroom experience from both prosecution and defense. His deep familiarity with the Suffolk County courts, combined with respected professional relationships within the legal community, allows him to navigate complex criminal matters with strategic precision and credibility.

Calm, Strategic Guidance During Critical Moments

When legal challenges arise, decisions made early can significantly influence outcomes. Clients turn to John Halverson for thoughtful counsel, measured advocacy, and a clear focus on protecting their freedom, reputation, and long-term future.