Investigations of people or events span many locations and time periods. When a private investigator works a case, his observations and efforts connect the movements and surroundings of the subject. To provide relative timelines the dates and time of each event is reported. It is critical to synchronize the timing of devices used to record these events.
Most of the time the clocks built into different devices are not exactly in sync, which can have consequences when the results are used later. The credibility of the accuracy of the report is at risk when they appear to be in conflict, even by a few minutes. The following video describes some scenarios where a private investigator can run into, and how to ensure exact results.