An outstanding Dade county dui lawyer knows many ways to attack the drunk driving results of breath, blood or urine tests. Methods of your Dade county dui criminal defense lawyer range from arguing that the law enforcement officer did not carefully observe you for the period required by Florida law and attacking the manner, method and time of calibration of the machine, to the number and proximity of tests and the quality of materials used. Repairs made to the machine, the blood/breath ratio and whether the driver was on the rise also affect your DWI legal case. There are many opportunities for a thoroughly knowledgeable Miami Dade county Florida dui lawyer to explore.