Defending Against a New Jersey DUI Based on Uncalibrated Alcotest Machines

A DUI charge in New Jersey often heavily relies on a single piece of evidence: the breath test result. In cities from Paterson to Atlantic City, police use the Alcotest 7110 MKIII-C to determine your Blood Alcohol Concentration (BAC). However, this machine is not a magical device; it is a sensitive scientific instrument that requires meticulous, ongoing calibration to produce legally admissible results.

If you have been charged with a DUI under N.J.S.A. § 39:4-50, your defense should immediately scrutinize the history of the machine used in your case. New Jersey's highest court has established strict guidelines for how these machines must be maintained. A failure by the police to follow these rules provides a strong opportunity to suppress the BAC reading entirely.

Step-by-Step Process for Requesting Discovery

In New Jersey municipal courts, such as the Elizabeth Municipal Court, Elizabeth or the Paterson Municipal Court, Paterson, you have the right to request all documentation regarding the Alcotest machine. This process is known as "discovery."

Step 1: Identifying Missing Calibration Certificates

The precedent set by State v. Chun, 194 N.J. 54 (NJ Supreme Court 2008) dictates that prosecutors must produce "core foundational documents" to admit breath test results into evidence. These include the most recent calibration certificates. State Police coordinators must test and calibrate these machines regularly. If the prosecutor fails to provide a valid, up-to-date certificate for the exact device used in your arrest, the test results may be thrown out.

Step 2: Checking for Expired Simulator Solutions

The Alcotest uses a liquid chemical called a "simulator solution" to verify its accuracy before you blow into it. This solution has a very strict expiration date. During the discovery process, your attorney will request the "Certificate of Analysis" for the simulator solution used on the day of your arrest. If the records show the solution was expired or not mixed to the exact legal specifications, the machine's accuracy is compromised, and the reading is invalid.

Step 3: Investigating Radio Frequency Interference (RFI)

Alcotest machines are sensitive to Radio Frequency Interference (RFI). Cell phones, police walkie-talkies, and dispatch radios can disrupt the machine's circuitry and artificially spike a BAC reading. New Jersey police departments are required to ban cell phones and portable radios from the booking room where the machine is located. By requesting the booking room surveillance video from the local precinct, your lawyer can check if officers violated the RFI protocols during your 20-minute observation period.

Step 4: Verifying the Operator's Credentials

Not every police officer is legally allowed to operate an Alcotest machine. The officer must possess a valid, current certification card issued by the New Jersey State Police, West Trenton. If the officer's certification was expired on the night of your arrest, they were not legally authorized to administer the test, rendering the results inadmissible.

How Much Does it Cost in New Jersey?

Defending against an Alcotest reading involves thorough legal investigation:

• DUI Attorney Fees: Depending on the county, hiring a lawyer for a highly technical Alcotest defense typically costs between $4,000 and $8,500.
• Discovery Filing Fees: Obtaining police records, maintenance logs, and video footage might incur minor administrative fees ranging from $25 to $100.
• Court Costs: Standard municipal court costs in New Jersey are roughly $33 per hearing, but fines for a conviction are significantly higher.

How Long Does the Process Take?

Obtaining the "core foundational documents" for the Alcotest machine can take time. While New Jersey strives to conclude DUI cases within 60 days, technical discovery disputes often drag the timeline out to 3 to 6 months. Prosecutors sometimes struggle to locate maintenance logs from the New Jersey State Police, West Trenton, which can result in multiple court adjournments in your favor.

Frequently Asked Questions (FAQ)