Problems of Forensic Sciences 2013 Vol. 95 (XCV) 651-669
GPS RECEIVERS AS SOURCES OF DIGITAL EVIDENCE
Piotr KRZEMIEŃ, Jan UNARSKI, Radosław GRZEGORSKI
Institute of Forensic Research, Kraków, Poland
Streszczenie
The authors discuss the possibility of making use of receivers with a GPS satellite navigation function as sources of evidence that are useful in road accident reconstruction. Many available navigation receivers enable recording of the so-called “track”, which is described by geographic co-ordinates of the vehicle’s position and velocity at given moments of time. The specifications of various models (produced by various manufacturers) have been presented, together with the data recording mode and the method of saving data. The need to exercise caution in interpreting vehicle movement parameters read from a file containing the track (route taken) and interpretation errors have been highlighted. APRS and other ways of track recording on Internet servers have been briefly outlined.
Słowa kluczowe
GPS receiver; Satellite navigation; Track recording; Vehicle motion parameters; APRS; Investigation procedure.