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- Path: sparky!uunet!cs.utexas.edu!sun-barr!news2me.EBay.Sun.COM!seven-up.East.Sun.COM!laser!egreen
- From: egreen@East.Sun.COM (Ed Green - Pixel Cruncher)
- Newsgroups: misc.consumers
- Subject: Re: CHP can't use radar?(Was: What radar d
- Date: 21 Dec 1992 14:49:59 GMT
- Organization: Sun Microsystems, RTP, NC
- Lines: 75
- Distribution: world
- Message-ID: <1h4linINNq4m@seven-up.East.Sun.COM>
- References: <1992Dec21.092328.1683@scott.skidmore.edu>
- Reply-To: egreen@East.Sun.COM
- NNTP-Posting-Host: laser.east.sun.com
-
- In article 1683@scott.skidmore.edu, jreiser@scott.skidmore.edu (Jason Reiser... Asleep) writes:
-
- YO, Wake up, Jason! :^)
-
- >tzs@stein.u.washington.edu (Tim Smith) writes:
- >> Here's how the cops claim they do it:
- >>
- >> They measure how long it takes the aircraft to go between the
- >> markers, while they observe the car.
- >
- >Here we go again Leo!
- >
- >> From this, they determine the aircraft ground speed (65 MPH in
- >> the case I was reading).
- >>
- >> They note that they are going the same speed as the car, hence
- >> the car is speeding.
- >>
- >> The court says (I use the singular rather than the plural, because I could
- >> only find one California appellate case where someone objected to this on
- >> the basis of it being a speed trap) that this is NOT a speed trap, because
- >> the aircraft is using the marker to measure its own speed, rather than
- >> using them to measure the speed of the car.
- >
- >Well, I'll give this method credit as being the most outrageous way of
- >nabbing a speeder that I have heard to date.
-
- That's CA for ya!
-
- >Besides the fact that
- >its primary purpose is to use a loophole in the law, it isn't really a
- >possibility. Sure, a plane could time itself between those two
- >points, but consider each of the following problems...
-
- [problems deleted]
-
- Most of these problems could be alleviated by the cops using the
- aircraft's *shadow* to both pace the car, and determine the plane's
- ground speed. The actual altitude, airspeed, direction, blah, blah, of
- the plane are thus pretty much moot, the shadow it throws on the ground
- is moving at its groundspeed.
-
- > So now, are you sure that the CHP actually use such a method?
-
- They *claim* they do. They are legally prohibited from simply timing
- the car through a known distance to determine its speed. I strongly
- suspect that is what they *actually* do, and only use the "matched
- speeds" BS if challanged in court.
-
- >Seems to me that any reasonable presentable and intelligent person
- >could take such a case to court and put the Police Department to
- >shame.
-
- Probably less than 10% of the ticketed motorists ever challenge the
- ticket in court, and most of those have some lame excuse like "my
- speedometer was broken." I would guess that anyone with actual
- knowledge of both the CA VC and avionics could present a convincing
- case against the accuracy of the speed determination. Whether *that*
- does any good or not is completely up to the judge.
-
- A FOAF contested a radar ticket in a CA court. He (an EE) proved,
- using the radar gun manufacturer's own specifications, that it was
- physically impossible for the gun to pick up the return from his
- motorcycle, which would be swamped by the return off the truck next to
- him. The judge looked bored throughout his presentation, then said,
- "radar technology is well understood, and the officer is a trained
- professional. If he says you were doing 70, you were doing 70. Do you
- want to pay the fine or attend traffic school?" :^(
-
- ---
- Ed Green, former Ninjaite |I was drinking last night with a biker,
- Ed.Green@East.Sun.COM |and I showed him a picture of you. I said,
- DoD #0111 (919)460-8302 |"Go on, get to know her, you'll like her!"
- (The Grateful Dead) --> |It seemed like the least I could do...
-
-