1. The ideal subject distance for passport pictures
Marcel A. Verhoff, Carsten Witzel, Kerstin Kreutz, Frank Ramsthaler 
Forensic Science International 
Volume 178, Issue 2, Pages (July 2008)
DOI: /j.forsciint
Copyright © 2008 Elsevier Ireland Ltd Terms and Conditions

2. Fig. 1
Exemplary photo series for 2 people. Solution, upper row (from the left): 5, 4, 1, 3, and 2m; bottom row: 2, 1, 3, 4, and 5m.
Forensic Science International  , DOI: ( /j.forsciint )
Copyright © 2008 Elsevier Ireland Ltd Terms and Conditions

3. Fig. 2 Distribution of all chosen distances for experimental series 1.
Forensic Science International  , DOI: ( /j.forsciint )
Copyright © 2008 Elsevier Ireland Ltd Terms and Conditions

4. Fig. 3 Distribution of all chosen distances for experimental series 2.
Forensic Science International  , DOI: ( /j.forsciint )
Copyright © 2008 Elsevier Ireland Ltd Terms and Conditions