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Additional Vascar Questions you can go into


Have you ever seen those broad white lines painted on the shoulder of the road running perpendicular to the lane of travel? Ever wonder what they are? Hello vascar

 Vascar usage:

Typical - set up at a freeway on-ramp or bridge 
White marker lines are easily visible to the officer
Freeway entrance ramps give easy access to the target vehicle
Periodically chase motorcycles may be placed further down the road

Moving mode while the trooper is traveling 
Cruiser can be traveling the same or opposite direction as the target vehicle

Ever seen those signs
"Speed Monitored by Aircraft?" Hello vascar
Typically there is a chase cruiser somewhere nearby

Vascar measures time and distance - the very definition of speed - tough to defend this case. Here, conversion - speed to velocity, feet and fractions of a second regarding entry / exit from the measured distance are critical in cross-examination to attack the officer's / deputy's / trooper's credibility and the actual measurement evidence of defendant's speed.

Examination: Trooper
(cross examination) Additional Questions if you want to ask them

Training and experience with unit
Training, experience and certification re visual speed estimates
Can trooper produce a wallet certification card?

 

As a part of radar or vascar training in most States, officers must make visual estimates of speed. To become certified and receive a wallet certification card, each must accurately estimate speeds: (since this changes on occasion you should check with you highway department or in the State Statutes to see what your State requires)

 

To quote the TV credit card commercial: "What's in your wallet?"
Hopefully, the officer doesn't possess the certification card. If he doesn't, ask for dismissal.



Markers
Initial marker measurement
Whether the trooper was physically present
Whether the tape measure or rolling tape was certified by the Colorado Dept. of Highways
Actual markers imbedded at the time of measurement
Whether the trooper was physically present when the markers were painted
Whether the paint markers were properly placed upon the imbedded markers
Condition of paint - visibility
Weather and road conditions - visibility

Trooper's location and opportunity to observe
Interference or distraction by other traffic or obstructions
Preferable to view scene

Location of defendant's vehicle as it entered measured zone
Vascar activation at front bumper
Vascar activation at rear bumper
Vascar activation by use of vehicle shadows
Shadow produces more accurate measure than use of vehicle body part

Location of defendant's vehicle as it exited measured zone
Vascar activation at front bumper
Vascar activation at rear bumper
Vascar activation by use of vehicle shadows

Trooper's reflexes
Actual time available to activate depending upon alleged speed
Velocity computation to obtain fraction of a second

Using velocity computation, elicit admissions as to effect of reflect error or visual error

Calibration, maintenance and repair of vascar unit