Field sobriety tests and breathalyzer are two different things. Normal course of events is for officers to talk to the person first and try to determine if they are impaired. IF the officer thinks they are, the next step would be field sobriety tests (arms out, head back, point your fingers, touch your nose; walk heel to toe X many steps out, pivot, then walk back; stand on one foot while holding other foot in the air in front of you, those kinds of things). If driver passed all with flying colors, officer might stop things there. If not, officer would then proceed to administering a breathalyzer test.
The above is a "general" outline of the overall procedure. Things could vary depending on circumstances and/or jurisdiction.
Not true.
In order for someone to take a breath, blood, or urine test they would have to be arrested prior to the test. The reason being every state in the country has a DMV form which must be read that usually has 6 rights on it. They must be read prior to the test being taken.
The rights list the BAC levels. If your under 21 it is a .02, if your driving a truck it is a .04, and if over 21 and operating a MV it is .08.
The form also lists if you refuse your license will be suspended in thirty days and if your over the limit the same your license will be suspended in thirty days.
After they agree to testing there is a 20 minute observation period. You watch the person for 20 minutes and they are not allowed to burp, touch their mouth, or place anything in their mouth. Most officer's make the person sit on their hands, because when you tell someone not to touch their mouth the first thing they want to do is touch their mouth.
After the 20 minute observation period you take 2 tests back to back. What also happens is you take 2 captured samples and they are sealed in small plastic tubes that are then placed in a sealed bag. The captured samples are given to you to take to an independent lab for test on your dime if want to.
If your over the limit, I seize your license and have the form sworn to under oath. You're given the back copy of the form which is pink in color and that pink form is your driver's license and after thirty days your license will be suspended.
The breath test given on the side of the road is called a PBT and it can not be used in court. It is totally voluntary and you have to inform them prior to taking it that it can not be used in a court of law, it is just to gage where they are at.