Breath testTurkey
An introduction to the traffic rules and road signs of Turkey. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.
For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.
195. Breath test
A breath test is a preliminary roadside test used to detect alcohol in a person’s breath and determine whether further testing is required. The person blows into a portable testing device, which compares the alcohol level with predefined thresholds. A breath test is generally used for screening rather than providing the final evidential measurement. If the result reaches the applicable limit, a more precise breath analysis or another legally recognised test may follow.
What is a breath test?
A breath test is a preliminary test that detects alcohol in exhaled breath and indicates whether the alcohol level is below or above specified thresholds.
How does a breath test work?
The person blows into a portable breath-testing device, which analyses a sample of exhaled air for alcohol.
Is a breath test the same as a breath analysis?
No. A breath test is generally a screening test, while a breath analysis provides a more precise measurement of the alcohol concentration in exhaled breath.
What happens after a positive breath test?
Depending on local law, a positive result may be followed by a breath analysis, blood test or other evidential procedure.
Can police perform random breath tests?
In many countries, police may conduct roadside alcohol checks even when a driver does not show obvious signs of impairment. The exact powers vary by country.
Can you refuse a breath test?
Rules vary between countries, but refusing a legally required breath test can itself lead to penalties or an immediate restriction on driving.

Traffic rules
Turkey