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.
The length of a case varies greatly from case-to-case. A case that has complex issues, many defendants, many witnesses or extensive legal matters can take considerably longer than a simple misdemeanor or violation. On average, it will take about 1 year from the time a person is arrested until the trial. Of course, the case can be dismissed or plea bargained at any time. You can follow the progress of your case by using the tables below.