INTERPOL HANDBOOK ON DNA DATA EXCHANGE AND PRACTICE

INVESTIGATIVE APPROACH TO THEFICTITIOUS SCENARIO• procedureExamination of the scene:The first police officer at the scene should make a very limited examination and evaluationof the scene. Care must be taken to avoid destroying existing evidence. The policeofficer should be satisfied that the extent of the scene has been correctly identified andshould enforce boundaries to ensure no potential evidence is compromised or lost.The following expert assistance should be requested in this order:1. Crime scene investigators and, when needed, a doctor to confirm death.2. Forensic examiner3. Senior police officer (SIO)4. Other experts if necessaryExamination of the toilets:The victim may have been attacked within the toilets and then moved.The offender may have entered the toilets following the attack leaving evidence in thetoilets after the rape. Questions to begin to consider include: Does other circumstantialevidence exist? Does the information available suggest any specific kind of modusoperandi?Examination of DNA evidence:Urgent analysis of all samples from the autopsy is vital, so that the offender’s DNAprofile can be recovered as soon as possible. Confirmation of the existence of a DNAprofile of the offender could prove essential for the investigation process.•asking the right questionsIntroduction - Description of the transit area:• How many areas are there like this within the airport?• Are they identical?• How easy or difficult is it to move from one transit hall to another?• for passengers• for airport staff• Which specific flights leave from this transit hall?• Has all relevant information about passengers and staff with access to this area beenrecorded?• Consider warning the police at all possible destinations to check the passengerswhen they arrive (How much time has elapsed since the death?). This could be adifficult and time consuming task.PAGE 16INVESTIGATIVE APPROACH TO THEFICTITIOUS SCENARIO