Criminal Investigation Techniques

These flashcards cover essential vocabulary and concepts related to criminal investigation techniques, including investigative practices, evidence collection, and legal precedents.

Follow-Up Investigation

Initiated when additional investigation is required beyond the initial report.

Neighborhood Canvas

Conducted to gather more information from potential witnesses about suspicious activities.

Photo Lineups

Two types: Sequential and Simultaneous, used to aid investigations but not definitive proof.

Differences between Interview and Interrogation

An interview is fact-finding without Miranda warning; an interrogation is accusatory and requires a Miranda warning.

Best Interview Practices

Separate witnesses, conduct interviews at the scene, and prepare background information.

Physical Signs of Deception

Signs include dry mouth, restlessness, excessive sweating, and avoiding eye contact.

Miranda Rights

Rights that must be read before an interrogation, confirming voluntary participation with a waiver.

Forensic Science

Application of scientific methods to criminal investigations.

Homicide Classifications

Includes Justified Homicide, Manslaughter, and Murder based on intent and circumstances.

Five Manners of Death

Natural, Accident, Suicide, Homicide, and Undetermined.

Cadaveric Spasm

Instant stiffening of muscles often seen in suicides.

Chain of Custody

Maintains integrity of evidence through proper documentation.