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.
Adjudication doesn't take years. OPM requires all decisions to be completed within 90 days of the investigation closing, otherwise the investigation becomes null. Their goal for us is to complete all investigations in 20 days. On average I adjudicate cases within 10 days.