---
title: "Can someone request a retest after an Illinois breathalyzer reading?"
description: "Yes. Illinois allows a person tested by law enforcement to obtain an additional independent chemical test at the subject's own expense under 625 ILCS 5/11-501.2. The law requires the arresting agency..."
url: https://chicagoduilawyer.net/faq-items/can-someone-request-a-retest-after-an-illinois-breathalyzer-reading/
date: 2026-07-08
modified: 2026-07-08
author: "Chicago DUI Lawyer"
type: faq
lang: en
---

# Can someone request a retest after an Illinois breathalyzer reading?

Yes. Illinois allows a person tested by law enforcement to obtain an additional independent chemical test at the subject's own expense under 625 ILCS 5/11-501.2. The law requires the arresting agency to allow reasonable opportunity but does not require the agency to transport or arrange the independent test. The subject typically arranges a blood test at a hospital shortly after release. The independent result becomes admissible and can contradict the state's number, particularly on borderline cases where absorption or elimination timing matters. Denial of a reasonable opportunity may support suppression of the state's test. A Chicago DUI lawyer confirms opportunity was given and, when denied, files the motion.