How the breathalyzer works and possible ways to defend a DUI charge in BC

Police in British Columbia use breathalyzers as one of their primary tools to test for impaired driving.  A blood alcohol concentration reading reading above .08 is cause for arrest for DUI / impaired driving. 

There are 3 types of machines used to test for for blood alcohol concentration.  They are (1) the breathalyzer, (2) the intoxilyzer, and (3) the alcosensor.  These 3 devices use different chemical reactions in order to provide a blood alcohol concentration reading.

There are several ways a blood alcohol concentration reading can be inaccurate.  If a criminal lawyer can show that the breathalyzer equipment wasn't maintained properly, this could be grounds for the reading not be used in court during your trial.  Also, if the breathalyzer machine wasn't calibrated properly, this too could mean the reading (i.e. the .08 and above reading) will not be admitted as evidence during a trial.

These are just two examples of how a criminal lawyer can defend an impaired driving charge.  Read our article "Breathalyzers and how a criminal lawyer can defend a DUI charge in BC" to learn more ways to defend a breathalyzer reading of .08 and above.