1. Laboratory of Criminalistics, Adam Mickiewicz University , Św. Marcin 90, 61-809 Poznań, Poland
2. Wielkopolska Centre for Advanced Technologies, Adam Mickiewicz University , Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
3. Department of Mathematical Statistics and Data Analysis, Adam Mickiewicz University , Uniwersytetu Poznańskiego 4, 61-614 Poznań, Poland