Private Investigator Assessment Flashcards

The individual who alleges that a criminal act was committed is referred to as _______.

Answer: Complainant

A 'complainant' is the individual who formally initiates a complaint or alleges that a criminal act has occurred, often by reporting it to law enforcement. While a victim may also be the complainant, the term complainant specifically refers to the person making the formal accusation or report, which sets the investigative process in motion.

This is the person who knows something about a crime.

Answer: Witness

A 'witness' is someone who has direct knowledge of a crime, either by observing it firsthand, hearing relevant information, or possessing other pertinent details. Witnesses provide crucial testimonial evidence that can help investigators reconstruct events, identify suspects, and corroborate other forms of evidence.

Anything that tries to verify or invalidate an alleged truth is known as ______.

Answer: Evidence

'Evidence' is a broad term encompassing anything presented in a legal investigation to prove or disprove a fact in contention. It includes physical objects, documents, testimony, and digital data, all of which aim to verify or invalidate an alleged truth. This definition covers all forms of information used to establish facts in a case.

The term ____ refers to objects or things that may be utilized to establish or refute a claim.

Answer: Physical Evidence

'Physical evidence' specifically refers to tangible objects or materials that can be collected, examined, and used to establish or refute a claim in an investigation. Unlike testimonial evidence, which is spoken, physical evidence includes items like weapons, fingerprints, DNA, documents, or other objects found at a crime scene. These items provide concrete links to the events or individuals involved.

____ belongs to an individual and is not accessible to the general public. A search warrant is needed when a crime scene is involved.

Answer: Private Property

'Private property' refers to land or possessions owned by an individual or private entity, not accessible to the general public without permission. Due to constitutional protections against unreasonable searches, investigators typically require a search warrant or explicit consent to legally search private property when a crime scene is involved. This ensures legal compliance and protects individual rights.

"Every contact leaves a trail," according to whom?

Answer: Dr. Edmund Locard

'Every contact leaves a trace' is known as Locard's Exchange Principle, a fundamental concept in forensic science. It was formulated by Dr. Edmond Locard, a French forensic pioneer, who stated that when two objects come into contact, there is always a transfer of material between them. This principle is crucial for understanding how physical evidence is left at crime scenes.

This type of search pattern is used for very large areas. The area is divided into pie-shaped pieces that are searched individually using the Strip/Line method.

Answer: Pie/Wheel

The 'Pie/Wheel' search pattern is specifically designed for very large, circular, or irregularly shaped areas. The area is conceptually divided into several pie-shaped wedges, with searchers starting from the center and moving outwards along the 'spokes' or using a strip/line method within each wedge. This systematic approach ensures thorough coverage of expansive spaces.

This type of searching is done outside or in a large area. The area should be split into four sections, each of which should be searched using any kind of search pattern.

Answer: Zone/Quadrant

The 'Zone/Quadrant' search pattern is ideal for large outdoor areas or complex indoor spaces that can be logically divided into smaller, manageable sections. Each designated zone or quadrant is then systematically searched using another appropriate pattern, such as a strip or spiral. This method ensures comprehensive coverage and allows multiple searchers to work simultaneously.

The search pattern "Spiral" is used.

Answer: By starting at the most inward point and slowly walking in increasing circles

The 'Spiral' search pattern is typically employed in open, unobstructed areas, often outdoors or in large rooms. It involves a single searcher or a team starting at the center of the area (or the outermost edge) and systematically moving in an ever-widening (or narrowing) circular path. This method is effective for finding evidence that may have been thrown or scattered from a central point.

Blood, semen, saliva, bones, hair, and DNA are all examples of this type of evidence.

Answer: Biological

'Biological evidence' refers to physical evidence originating from living organisms, such as humans, animals, or plants. Blood, semen, saliva, bones, hair, and DNA are all prime examples because they contain genetic material or cellular components that can be analyzed to identify individuals or link them to a crime. This type of evidence is crucial in forensic investigations.

The evidence points to a likely origin, such as bumper paint from another car.

Answer: Trace

'Trace evidence' refers to minute or microscopic materials that are transferred between people, objects, or locations during a crime. Examples include fibers, hairs, soil, glass fragments, and paint chips, like bumper paint from another car. This type of evidence is often invisible to the naked eye but can provide crucial links and point to a likely origin or contact between individuals or objects.

On the wall is a bloody handprint. Fingerprints from the wall are collected. You've just gathered ______.

Answer: Patent Prints

A patent print is a visible print left by a foreign substance like blood, ink, or paint. Since the handprint on the wall is bloody and therefore clearly visible to the naked eye, it falls under the category of a patent print. These prints are readily apparent without any special processing or enhancement.

After a new paint job, the dealership returns your car. Your paint work was destroyed by a careless painter's fingermarks. You can find out who made the problem by gathering ______.

Answer: A Plastic Print

A plastic print is a three-dimensional impression left in a soft or pliable material. In this scenario, the careless painter's fingermarks are pressed into fresh, soft paint, creating a mold or indentation. This distinct characteristic of being a physical impression makes it a plastic print, as opposed to a flat, two-dimensional print.

You want to know if anyone in the paint shop has the same fingerprint as the one on your car. You gather all prints of every staff who were there while your car was painted. What are you gathering?

Answer: Elimination Prints

Elimination prints are collected from individuals who are known to have legitimately been at a scene or handled an item, to exclude their prints from being considered evidence left by a suspect. By gathering prints from all paint shop staff, you can compare them to the print on the car and eliminate those who were authorized to be there, narrowing down potential suspects. This process helps distinguish between innocent contact and potential criminal involvement.

Who handled the evidence, when, why, and what, if any, alterations were made are documented in the ______.

Answer: Chain of Custody

The Chain of Custody is a critical legal document that meticulously records the chronological history of evidence from its collection to its presentation in court. It details who handled the evidence, when, where, why, and any changes made to it, ensuring its integrity and admissibility. This documentation proves that the evidence presented is the same as that collected at the scene and has not been tampered with.

The kind of photo used to capture tire tracks is called a _______.

Answer: Closeup

A closeup photograph is essential for capturing the intricate details of small or specific pieces of evidence, such as tire tracks. This type of photo provides a magnified view, allowing for the clear documentation of unique patterns, dimensions, and characteristics crucial for analysis and comparison. It ensures that all relevant features of the track are preserved and visible for forensic examination.