When you are stopped for the suspicion of driving under the influence of alcohol, you are asked to take either a breath or chemical test at the site of the arrest. Additionally, you are asked to take a test at the station once you have been taken into custody. Whereas it is your right to refuse the preliminary breath test (the one administered at the scene of the arrest), you cannot refuse the test given at the station without additional penalty.
If you have refused to take both tests, there may be some legal defenses that will work in your favor. An experienced Los Angeles DUI attorney can prepare a powerful defense that will help strengthen any possible defenses that you may have.
One possible defense is if you have asthma and are unable to properly breathe into the machine in order to provide an adequate sample. Another valid defense is if for any reason you are physically unable to take the breath test. If there is a valid scenario rendering you incapable of giving a breath sample, you may have a defense against an additional penalty imposed due to refusal.