Crime Scene Investigation Quiz

Most wrongful convictions seem to be the result of:

• Improper evidence collection

• Faulty eyewitness testimony

• Contamination of evidence

• Out of date investigating equipment

Locard’s exchange principle implies all of the following except:

• Fibers can be transferred from one person’s clothing to another.

• Blood at a crime scene can be used to identify blood type.

• Hair from your pet may be transferred to your clothing.

• Pollen from plants in your yard may be found on your shoes.

A crime scene sketch should include all of the following except:

• A label to indicate the direction of north on the diagram

• A scale of size

• The location of the crime scene

• The type of search pattern detectives used to make the sketch

In a class of 20 students, 7 were wearing a white shirt. In the same class, 14 students had on blue jeans. Eyewitnesses all stated that the suspect was in the class, and wearing both a white shirt and blue jeans. According to the laws of probability, what percent of the class could be the suspect?

• 15%

• 25%

• 35%

• 45%

It is important to separate witnesses at a crime scene in order to:

• Prevent them from talking to each other

• Allow them to rest

• Make them feel comfortable

• Ensure they do not leave the scene

The ability to establish the exact whereabouts of an item of evidence and under whose control it was from its collection at the crime scene to its presentation in the courtroom is called:

• chain of command

• chain of custody

• continuity of investigation

• record of evidence

The best method for collecting small evidence is to pick it up using:

• Vacuum

• Tape lift

• Forceps

• Gloves

All of the following are considered direct evidence except:

• Fingerprint

• Confession

• Video recording

• Eyewitness statement

The first-responding police officer should keep a record of anyone who enters or leaves the crime scene. This is called:

• chain of command

• chain of custody

• security log

• evidence log

Any removal of evidence from a crime scene must be in accordance with what Amendment?

• First

• Second

• Third

• Fourth

• Fifth