Blood testBrussels
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253. Blood test
A blood test can be used to measure the concentration of alcohol in a person’s blood. A healthcare professional takes a blood sample, which is then analysed in a laboratory to determine the blood alcohol concentration (BAC). In traffic enforcement, blood testing may be used when breath testing is impossible or unsuitable, after an accident or as a counter-analysis to a breath result. The circumstances in which a blood test can be required and the legal alcohol limits vary between countries.
When can the police require a blood test for alcohol in Belgium?
A blood test can be ordered when a breath test reaches the applicable alcohol threshold but a breath analysis cannot be performed, or when neither a breath test nor breath analysis can be carried out and there are clear signs of alcohol consumption or intoxication.
Who takes the blood sample in Belgium?
The blood sample is taken by a doctor requested for that purpose and is then analysed to determine the alcohol concentration in the blood.
Can a blood test be required after a traffic accident in Belgium?
Yes. If neither a breath test nor a breath analysis can be performed on a person who may have caused or contributed to an accident, a blood sample can be required, including when it is impossible to determine whether signs of alcohol consumption are present.

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