Interpretation of automotive light bulb examination results: an intriguing case
1Premier Assistant, Institute of Scientific Police, School of Criminal Sciences, University of Lausanne, Switzerland. criminalistis@mac.com
Abstract:
During the examination of light bulbs from a vehicle involved in a road accident, the headlights did not reveal any evidence regarding whether they were energized or not. Additionally, a police officer turned the lights on after the accident to verify their functioning, thus damaging some of the evidence. By examining the vehicle, it was determined that the park lights could provide answers regarding the conditions of the headlights. After observations, it was concluded that the park lights and headlights were off at the time of the impact. This case report demonstrates how important it is to integrate the circumstances surrounding the case into the interpretation of the results. Nevertheless, it also demonstrates the necessity for examining both the vehicle and all light bulbs in order to reach the most pertinent and proper conclusion.
Related Concept Videos
Kirchoff's Rules: Application
When applying Kirchhoff's first rule, the junction rule, label the current in each branch and decide its direction. If the chosen direction is wrong, it will have the correct magnitude, although the current will...
Impedance Combination
Design Example: Automobile Ignition System
One can generate a large voltage using a car battery of 12 volts with the help of inductors. Inductors are known for opposing rapid...
Flame Photometry: Lab
Kirchhoff's Voltage Law
KVL states that the algebraic sum of all voltages around a closed path or loop within a circuit is zero. This means that the total voltage supplied in a loop is equal to the total...
Light Acquisition


