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Forensic Toxicology Lab


***In response to COVID-19, the Intox EC/IR II breath test instrument manufacturer, Intoximeters, has released cleaning recommendations for handheld and desktop breath test instruments, as well as answered FAQs (see links below).

If cleaning of a breath test instrument is performed, do not pour or spray cleaners or disinfectants directly on the instrument or equipment. Instead, use a damp cloth to wipe the keyboard, breath tube, instrument case, etc. Since many cleaners contain alcohol, wait 15 minutes after all residual liquid has evaporated prior to administering a breath test. Residual alcohol in the air can cause instrument status messages related to blank checks and environmental conditions which would prevent a subject test from being performed.

Recommendations from Intoximeters also include:

wearing gloves when administering tests, washing hands frequently, operating the instrument in a manner that the subject and operator are least exposed to possible disease transmission, and utilizing one-way mouthpieces on evidentiary instruments.

Below are links provided by Intoximeters.




Infection Control, Cleaning, and Disinfecting Intoximeters Desktop Instruments:


If you have any questions regarding the cleaning or operation of the Intox EC/IR II, please contact Dana Bors at dbors@isdt.in.gov.

A pdf of the information described above is located here.

The Indiana State Department of Toxicology’s (ISDT) mission is to provide quality forensic toxicological services and education about the science of toxicology for the state of Indiana.

ISDT supports the criminal justice system through analyses for alcohol and selected drugs in blood samples submitted by law enforcement agencies and coroners, furnishing expert testimony and education on the pharmacology and toxicology of drugs, training and certifying law enforcement officers to administer breath tests for alcohol, inspecting, maintaining, and certifying breath test instruments, and certifying ignition interlock device models. We believe quality results are obtained through professional, ethical, and unbiased analyses of evidentiary specimens entrusted to the Department for testing. The key to interpreting and understanding these results is achieved through the Department’s open communication and willingness to instruct others on the science of forensic toxicology.

ISDT hires highly-qualified personnel who share the department values. It provides a professional work environment and technical and administrative leadership that encourages excellence through clear communication of expectations, goals, and objectives and the provision of resources that enable staff to accomplish the department mission and objectives, including a training program to ensure each employee is always learning.

Mission Statement, Objectives, and Values