Blood pressure is governed by five elements--the strength of the heartbeat, the volume of blood, the viscosity of the blood, the resistance of the arterioles, and the elasticity of the arterial walls. An abnormality of any of these can cause the blood pressure to be too high or too low.
Depending on the complexity of the case a trial can last anywhere from one day to six months or longer. If you are asking how long a rape prosecution takes you are probably looking at 6 months to a couple of years.
Whether a DUI defendant is waiting on background information on the arresting officer or the deposition of an expert witness, this pre-trial process can drag on for as long as a year. 3. Trial and Sentencing. A DUI trial may only last an afternoon, or it may last months.