He cleaned the cups, then the glass, followed by the mirrors, cleaning the rough after the smooth, the fine after the rough, the soft after the fine, the hard after the soft...
The work of crime scene investigation, when looked at broadly, involves a variety of aspects, but delving into details, it consists of many minute tasks.
Policemen often say that solving a case is a matter of accumulating resources, and this is particularly evident during the on-site investigation phase.
Take for instance the collection of DNA and fingerprints. Laypeople often believe that if a criminal suspect leaves DNA or fingerprints at a crime scene, the crime scene investigators will find them, but in reality, there is no advanced equipment capable of accurately detecting all fingerprints and DNA within a certain area.
