If you have been recently charged with driving under the influence of alcohol then it is important to note that any scientific evidence against you may not be the end-all when relating to a verdict. There are various factors that could come into play that may alter or affect any results of the tests performed by the arresting officer. These tests include chemical testing and field sobriety such as blood testing or breathalyzers.
Do not be dismayed if the police officer says that you have failed a test. This will not mean that your chance of successfully defending yourself have evaporated. Any blood test or sobriety tests is subject to error. There are many cases where a police officer has made a mistake when operating a breathalyzer machine. Most people are very scared when confronted by the police and they may stumble greatly during any field sobriety test. For this reason, it is very important to contact an experienced DUI defense lawyer so that he can introduce these mistakes and errors to the attention of the court.
For example, a technician at times may make a mistake when taking blood for a DUI blood test. He may have not properly swabbed the draw site. The BAC scales can be tipped by improper cleaning using an alcohol ingredient. There may be also issues with the preservation of your blood, was it done properly? If a technician does not add the proper amount of coagulants or preservatives then this too could be an issue that causes your results not to be correct. Then there is the issue of movement from the lab to the law enforcement location.
It has been proven that a breathalyzer test can be unreliable. A breathalyzer machine will rely on the data that is put into it. A policeman may not change the breathalyzer mouthpiece as often as it should be changed. Maybe you are using a mouthpiece that was used by a previous intoxicated driver. People who have just smoked a cigarette, have a diabetic condition, chewed smokeless tobacco, or have had recent dental work may cause the breathalyzer to give a false, positive reading.
As you can see, there are many reasons and factors that can result in an improper breathalyzer reading or blood test. For this reason, it is imperative that you contact an experienced DUI lawyer immediately after you have been charged with a drunk driving offense.