The consequences of a DUI conviction in Colorado is very serious. It's important to know your rights and have drunk driving defense lawyer on your side of the law to protect your freedom and reputation.
Field Sobriety Tests
Field sobriety tests include walking in a straight line, balancing on one foot, reciting the alphabet, and so on. They may also include the "Horizontal Gaze Nystagmus" test, where you are asked to watch the tip of a pen as the officer moves it from side to side. Your performance on the roadside tests is, again, a subjective determination. Colorado police officers are required to perform these tests in specific ways - many times the proper protocol is not followed. This may make the observed results invalid. If there is no observed bad driving, this may tend to disprove the assertion that you "failed" the field sobriety tests.