BayAreaBMWFan
Member
CA: 40 in 30: Informal Discovery Request before Plea?
What is the name of your state? California; Santa Clara
I received a ticket for going 40 in a 30 mile zone. I had just got out of my house and made a left turn after a stop sign at a T junction. An officer was standing on the sholder on the other side of the road about 240 ft from the intersection. He pulled me over and said that he caught me doing 40 on the 30 zone within the 240 ft!
He told me that there have been a lot of complaints of speeding on this road by area residents. He had already cut a few tickets today, primarily to high school students who frequent the road. He did ask me when I had my last ticket before writing me up, and then told me that I can go to traffic school. I asked him to show me the radar readout and he said that he had already cleared it!
I have a MS degree in EE and know enough about radars and mechanics to know that it almost impossible to do what he claimed I did. I have a roadster and due to a transmission issue, I have to press on the gas in the first gear, and I get off the blocks fast. I think he saw that and decided that I was going fast enough for him to pull me over. Since a roadster is much smaller than other cars, it also appears to go faster than a larger vehicle at the same speed.
I know the PD uses a K band radar. He was at least 25ft or 30 ft on the other side of my car. Assuming a beam angle of 15 degrees the officer needs a minimum gap of 150 ft to keep me in the main lobe. This means that I had 90 ft to go from 0 to 40mph which is equivalent to a 0-60 time of 4.60 sec!!
The other alternate is that he used an angular shot. However, that means that cosine acceleration becomes important. Assuming a cycle time of 300ms (between bursts of microwave), the minimum distance required with an offset of 30 ft to keep the error less than 1mph between two consecutive readings is about 90 ft. This gives me about 160 ft to go from 0 to 40. And would translate to a 0-60 time of 8.5 sec.
I was in a residential area and not driving fast. The officer admitted that I was not racing and that he expected a high-school student and not a mid 30s home owner going to work. But he said that to be fair to everyone he has to write me up.
I have the following dilemma:
- I can go to traffic school and forget about everything.
- I can fight it out and risk getting a point after all the hassle.
In order to decide which way to go, I need to know how the officer took the reading. I have the following questions:
1. Can I file a Informall Discovery Request before I decide to plead guilty or go to trial?
2. I am I required to plead not guilty to start requesting this information from the PD?
3. Can I use my MSEE degree to justify my calculations or do I need to have an outside expert verify my calculations?
4. Am I required to be in the main-lobe (which has 80% of the power) for the officer to get an accurate reading at such small distances?
5. Is the officer required to keep the gun on my car for a minimum amout time to get an accurate reading?
6. Can I request information about the specification of the radar gun used and the typical operating requirements (angle of detection, time span to lase etc.)?
I have left a voice mail with the officer so that I can explain my logic to him. This sounds stupid, but I do not believe that I can convince a judge with math and equations, if the officer is not convinced that he made an error.
What is the name of your state? California; Santa Clara
I received a ticket for going 40 in a 30 mile zone. I had just got out of my house and made a left turn after a stop sign at a T junction. An officer was standing on the sholder on the other side of the road about 240 ft from the intersection. He pulled me over and said that he caught me doing 40 on the 30 zone within the 240 ft!
He told me that there have been a lot of complaints of speeding on this road by area residents. He had already cut a few tickets today, primarily to high school students who frequent the road. He did ask me when I had my last ticket before writing me up, and then told me that I can go to traffic school. I asked him to show me the radar readout and he said that he had already cleared it!
I have a MS degree in EE and know enough about radars and mechanics to know that it almost impossible to do what he claimed I did. I have a roadster and due to a transmission issue, I have to press on the gas in the first gear, and I get off the blocks fast. I think he saw that and decided that I was going fast enough for him to pull me over. Since a roadster is much smaller than other cars, it also appears to go faster than a larger vehicle at the same speed.
I know the PD uses a K band radar. He was at least 25ft or 30 ft on the other side of my car. Assuming a beam angle of 15 degrees the officer needs a minimum gap of 150 ft to keep me in the main lobe. This means that I had 90 ft to go from 0 to 40mph which is equivalent to a 0-60 time of 4.60 sec!!
The other alternate is that he used an angular shot. However, that means that cosine acceleration becomes important. Assuming a cycle time of 300ms (between bursts of microwave), the minimum distance required with an offset of 30 ft to keep the error less than 1mph between two consecutive readings is about 90 ft. This gives me about 160 ft to go from 0 to 40. And would translate to a 0-60 time of 8.5 sec.
I was in a residential area and not driving fast. The officer admitted that I was not racing and that he expected a high-school student and not a mid 30s home owner going to work. But he said that to be fair to everyone he has to write me up.
I have the following dilemma:
- I can go to traffic school and forget about everything.
- I can fight it out and risk getting a point after all the hassle.
In order to decide which way to go, I need to know how the officer took the reading. I have the following questions:
1. Can I file a Informall Discovery Request before I decide to plead guilty or go to trial?
2. I am I required to plead not guilty to start requesting this information from the PD?
3. Can I use my MSEE degree to justify my calculations or do I need to have an outside expert verify my calculations?
4. Am I required to be in the main-lobe (which has 80% of the power) for the officer to get an accurate reading at such small distances?
5. Is the officer required to keep the gun on my car for a minimum amout time to get an accurate reading?
6. Can I request information about the specification of the radar gun used and the typical operating requirements (angle of detection, time span to lase etc.)?
I have left a voice mail with the officer so that I can explain my logic to him. This sounds stupid, but I do not believe that I can convince a judge with math and equations, if the officer is not convinced that he made an error.
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