Crime Scene

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What is the primary purpose of properly protecting and processing crime scenes?

To record and document evidence for future reference

To ensure officer safety and the safety of others

To establish a comprehensive chain of custody for evidence

To contribute materially to the apprehension and prosecution of suspects (correct)

Which statement accurately describes the definition of circumstantial evidence?

Circumstantial evidence is evidence that is irrelevant to the case

Circumstantial evidence is evidence that offers other circumstances from which the truth may be inferred (correct)

Circumstantial evidence is evidence that directly establishes a fact

Circumstantial evidence is evidence that is inadmissible in court

What is the primary responsibility of police officers regarding evidence at crime scenes?

To secure the crime scene and await the arrival of forensic investigators

To document the chain of custody for all evidence collected

To protect, handle as little as possible, and record the evidence (correct)

To collect and analyze all evidence found at the crime scene

According to the policy, which of the following should be considered at all times when processing crime scenes?

Officer safety and the safety of others Signup and view all the answers

What is the significance of the manner in which evidence is obtained, handled, and recorded?

It determines the success or failure of an investigation and subsequent prosecution Signup and view all the answers

Which of the following statements accurately reflects the policy regarding crime scene processing?

The Omaha Police Department will closely coordinate with the Forensic Investigations Unit and other agencies as required Signup and view all the answers

What is the responsibility of the first officers to arrive at a crime scene?

Provide care and protection to the injured Signup and view all the answers

What should officers not do concerning witnesses at a crime scene?

Allow any person to leave the scene without establishing reliable identification Signup and view all the answers

When should UPB officers conduct the investigation themselves?

When CIB detectives are not available Signup and view all the answers

Which type of personnel should not be allowed into the crime scene according to the text?

Law enforcement personnel not involved in the investigation Signup and view all the answers

What should officers do when a witness needs to be transported to another location for an interview?

Obtain voluntary consent or probable cause before transport Signup and view all the answers

Who is responsible for communicating with the Life Flight helicopter according to the text?

OFD rescue squads Signup and view all the answers

What is the primary responsibility of a ranking officer at a crime scene?

Assist CIB detectives in their investigation Signup and view all the answers

What action should officers take regarding additional emergency equipment needed at the scene?

Advise the 911 Dispatcher immediately before leaving the vehicle Signup and view all the answers

Which type of evidence directly shows the existence of a fact that a witness has first-hand knowledge of through their senses?

Direct evidence Signup and view all the answers

What is the legal case that established the requirement for officers to ensure a person's constitutional right against self-incrimination is waived knowingly, intelligently, and voluntarily?

Miranda v. Arizona Signup and view all the answers

Which of the following is NOT an example of non-testimonial evidence provided in the text?

Witness statements Signup and view all the answers

Why should each firearm, cartridge, and cartridge casing at a shooting scene be booked into evidence as an individual item?

All of the above Signup and view all the answers

What system is used by the Forensic Investigations Unit to determine if the firearm used to discharge casings found at one scene was used to fire casings found at another scene?

Integrated Ballistics Identification System (IBIS) Signup and view all the answers

What should officers do when approaching a crime scene where additional visual information is needed before arrival?

Stop their vehicle a short distance away and approach the scene unobserved to conduct a quick observation Signup and view all the answers

What should officers do with their emergency equipment when dispatched to a crime scene on an "Expedite" status?

Shut off emergency equipment prior to arrival at the scene Signup and view all the answers

What should officers do when positioning their vehicles at a crime scene?

Position their vehicles in a manner that allows the flow of traffic to continue in a normal manner, whenever possible Signup and view all the answers

What should officers do in cases where they want to acquire non-testimonial evidence but are unsure if a court order is needed?

Contact the City Prosecutor or County Attorney regarding whether a court order is needed Signup and view all the answers

Which of the following statements is TRUE regarding officers' approach to a crime scene?

Officers should shut off their emergency equipment prior to arrival at the scene if dispatched on an "Expedite" status Signup and view all the answers

When should officers consult with the Forensic Investigations Unit (FIU)?

To determine the best method for searching the crime scene Signup and view all the answers

If suspects are not in the area, what should officers do according to the text?

Obtain a consistent suspect description and initiate a broadcast Signup and view all the answers

Under what circumstances may victims and/or witnesses of sexual assaults or sex trafficking crimes have immunity from arrest or prosecution?

If they committed eligible alcohol or drug offenses as per NRS §60-699 Signup and view all the answers

What are OPD FIU employees responsible for at crime scenes?

Taking measurements and documenting all physical evidence Signup and view all the answers

If a FIU employee is unable to respond to a crime scene, what should investigating officers do?

Collect items of evidentiary value and protect microscopic evidence Signup and view all the answers

What should officers do when a situation dictates that non-testimonial evidence must be moved and/or recorded for its protection?

Use appropriate methods such as gloves, tweezers, and containers Signup and view all the answers

What should officers do when there is no physical evidence or photos at a crime scene?

Document an explanation for why no evidence could be collected Signup and view all the answers

What should responding officers do in the case of a burglary crime scene?

Notify FIU immediately for a forensic investigative decision Signup and view all the answers

What should officers do if they have questions regarding what evidence to collect or protect?

Consult with their field supervisor Signup and view all the answers

When should officers check for the possibility of latent fingerprints at the scene before moving any evidence?

Whenever the situation warrants it Signup and view all the answers

What is the primary responsibility of officers when responding to a non-fatal narcotics overdose scene?

Notify CIB immediately for further investigative decisions Signup and view all the answers

If a CIB detective cannot respond to a non-fatal narcotics overdose scene, which of the following tasks should UPB officers perform?

Conduct a preliminary investigation and document relevant information Signup and view all the answers

Which of the following is NOT a responsibility of CIB detectives when responding to a non-fatal narcotics overdose scene?

Collect and book any narcotics or drug paraphernalia found Signup and view all the answers

If officers or detectives determine or suspect that a narcotics overdose was intentional by the victim, what should they do according to the policy?

Notify the Behavioral Health and Wellness Unit for potential follow-up Signup and view all the answers

According to the policy, what should be documented in OPD Supplementary Reports for non-fatal narcotics overdose scenes?

Details, names, statements, and other relevant information gathered Signup and view all the answers

Which of the following tasks is NOT mentioned in the policy for UPB officers responding to a non-fatal narcotics overdose scene when CIB detectives cannot respond?

Request assistance from the FIU (Forensic Identification Unit) Signup and view all the answers

According to the policy, what type of report should an OPD command officer ranked sergeant or higher complete for non-fatal narcotics overdose scenes?

An Overnight Report Signup and view all the answers

Which of the following tasks is NOT mentioned in the policy for CIB detectives responding to a non-fatal narcotics overdose scene?

Request assistance from the FIU (Forensic Identification Unit) for processing Signup and view all the answers

Which of the following statements is correct according to the policy?

UPB officers shall notify the Behavioral Health and Wellness Unit for potential follow-up with the victim Signup and view all the answers

What actions are officers NOT allowed to do at a crime scene?

Smoke, bring food or drink, touch anything, or move anything Signup and view all the answers

What should officers do if they have to move a firearm for safety reasons?

Mark the position of the firearm, handle it carefully, and place it in a secure location Signup and view all the answers

When should officers record the facts of the crime scene?

Continually while studying the scene and keeping the total scene in perspective Signup and view all the answers

What method can officers use when conducting searches of large crime scenes?

Use ropes to define boundaries and work closely with FIU Signup and view all the answers

Why should officers be patient and thorough when recording facts of the crime scene?

To ensure all information is accurately captured in its original condition Signup and view all the answers

What is the prohibited action regarding knives at a crime scene if they do not pose an immediate threat?

Leave them where they are found Signup and view all the answers

What is a key guideline for handling firearms at a crime scene?

Leave them exactly where they are found unless they pose a threat Signup and view all the answers

When can officers handle firearms at a crime scene?

When necessary for safety reasons Signup and view all the answers

What should officers do if they must move a weapon at a crime scene?

Mark its position and handle it carefully to avoid contamination Signup and view all the answers