---
title: "What defenses work in Portsmouth bridge stop DUI cases?"
description: "Bridge stops have specific defense angles: lack of proper shoulder for field tests, bridge sodium-vapor lighting affecting HGN test reliability, heavy bridge winds affecting balance during..."
url: https://riduiguy.com/faq-items/what-defenses-work-in-portsmouth-bridge-stop-dui-cases/
date: 2026-05-23
modified: 2026-05-23
author: "The RI DUI Guy"
type: faq
lang: en
---

# What defenses work in Portsmouth bridge stop DUI cases?

Bridge stops have specific defense angles: lack of proper shoulder for field tests, bridge sodium-vapor lighting affecting HGN test reliability, heavy bridge winds affecting balance during walk-and-turn and one-leg stand, no breakdown lane forcing stops in active traffic, and transport time consuming the breath test observation period.

What defenses work in Portsmouth bridge stop DUI cases?(https://riduiguy.com/author/riduiguy/)2026-05-23T02:31:35-04:00