View a presentation the Snohomish County Assessor's Office offers to representatives of taxing districts each year to help them learn about the levy process. The information provided can be useful to anyone wanting to learn more about this process.
A minimum of 240 hours of instruction in fields of study relating to bloodstain pattern analysis is required. This 240 hour requirement includes the aforementioned 40 hour basic bloodstain pattern analysis course. Additionally, completion of a 40 hour photography course is also required.
How It Is Done. The health professional drawing your blood will: 1  Wrap an elastic band around your upper arm to stop the flow of blood. 2  This makes the veins below the band larger so it is easier to put a needle into the vein. 3  Clean the needle site with alcohol. 4  Put the needle into the vein.