Forensics 3 CSI Stuff

Crime Scene Protocols

Procedures established to secure and investigate a crime scene effectively.

Chain of Custody

A detailed log of all individuals who enter and exit the secured area to maintain the integrity of evidence.

Emergency Circumstances

One of the four exceptions allowing search and seizure without a warrant due to urgent situations.

Physical Evidence

Tangible items that can be collected and analyzed as part of the investigation, such as hair fibers or weapons.

Securing the Crime Scene

Establishing boundaries to protect the area from contamination by keeping civilians away and marking the scene.

Search Patterns

Methodical approaches used by investigators to thoroughly search a crime scene, like grid or spiral patterns.

Videotaping Crime Scenes

Recording a crime scene overview, medium, and close-up images in one continuous sequence for documentation.

Collection Procedures

Steps taken to gather evidence without damaging or contaminating it, including proper storage.

Submitting Evidence

The process of sending collected evidence to a lab for analysis, often accompanied by case information.

Mincey vs. Arizona

A legal case determining that evidence obtained without a warrant during a prolonged search was inadmissible.

Michigan vs. Tyler

A legal case establishing that evidence collected after the initial search and without a warrant violates rights.

Tangible Evidence

Physical items collected from a crime scene that can be subjected to forensic analysis.

Search and Seizure Protocols

The legal framework governing how and when evidence can be searched and seized in compliance with the Fourth Amendment.

Interview Documentation

The process of recording statements from witnesses, suspects, and law enforcement to include in case notes.

Visual Tags

Markers included in photographs to help piece together different images of a crime scene.

Crime Scene Tape

Materials used to secure the boundaries of a crime scene and restrict access.

Standard/Reference Sample

Known physical evidence used to compare and assess unknown evidence.

Substrate Controls

Materials adjacent to where evidence is found, used for comparison to physical evidence.

Documentation Methods

Technique of using photography, sketches, and notes to record a crime scene.

Searching Methods

Different systematic approaches (e.g., line/strip, grid, spiral, zone) employed to ensure thorough examination of a crime scene.