LEIN Crime Analysis & Intelligence Gathering 4 — Questions and Answers
Question 1: Which concept describes the minimum information legally required before entering a subject into a criminal intelligence file under 28 CFR Part 23?
- Probable cause
- Reasonable suspicion of criminal activity (Correct answer)
- Preponderance of evidence
- Clear and convincing evidence
Correct answer: Reasonable suspicion of criminal activity
28 CFR Part 23 requires at least a reasonable suspicion that the subject is involved in criminal activity before inclusion in a shared intelligence system.
Question 2: A LEIN terminal operator must purge a criminal intelligence record when:
- The subject requests removal
- The information is no longer relevant, reliable, or timely as determined by periodic review (Correct answer)
- Five years have passed regardless of case status
- A supervisor approves the entry for deletion
Correct answer: The information is no longer relevant, reliable, or timely as determined by periodic review
28 CFR Part 23 mandates regular review and purging of intelligence records that no longer meet relevancy, reliability, or timeliness standards.
Question 3: In crime series analysis, what is the key indicator that distinguishes a 'series' from random clustering?
- Geographic proximity alone
- A common MO, victim profile, or suspect description linking multiple incidents (Correct answer)
- More than five incidents in one precinct
- Incidents reported within the same 24-hour period
Correct answer: A common MO, victim profile, or suspect description linking multiple incidents
A crime series requires identifiable linking characteristics — such as shared MO, similar victims, or suspect descriptions — beyond coincidental spatial or temporal proximity.
Question 4: When disseminating intelligence obtained through LEIN to a non-law enforcement government agency, the controlling standard is:
- The requesting agency's internal policy
- The 'need to know' and 'right to know' principles (Correct answer)
- Federal open-records statute
- The originating officer's discretion
Correct answer: The 'need to know' and 'right to know' principles
Intelligence dissemination is governed by whether the recipient has both a legitimate need for the information and the authority to receive it.
Question 5: A patrol officer contacts dispatch for a LEIN query on a pedestrian during a consensual encounter. If the return shows no wants or warrants, the officer must:
- Detain the subject until a sergeant confirms the clear return
- Allow the individual to leave if there is no other basis for detention (Correct answer)
- Enter the contact into the intelligence file
- Document the query in the daily crime report
Correct answer: Allow the individual to leave if there is no other basis for detention
A clear LEIN return during a consensual encounter eliminates the query result as a basis for detention; the person retains the right to leave.
Question 6: Which analysis technique divides a geographic area into cells and measures crime density per cell to guide resource allocation?
- Choropleth mapping
- Grid cell analysis (kernel density estimation) (Correct answer)
- Regression discontinuity analysis
- Social network mapping
Correct answer: Grid cell analysis (kernel density estimation)
Kernel density estimation and grid cell analysis quantify crime concentration across defined spatial units, enabling data-driven resource deployment decisions.
Question 7: The NCIC Missing Person File is divided into categories. Which category covers individuals who are missing under circumstances indicating they may be in danger?
- Disability (EMD)
- Endangered (EME) (Correct answer)
- Involuntary (EMI)
- Juvenile (EMJ)
Correct answer: Endangered (EME)
The Endangered (EME) category in the NCIC Missing Person File applies when circumstances indicate the missing person may be in danger of injury or death.
LEIN Crime Analysis & Intelligence Gathering 4
Which concept describes the minimum information legally required before entering a subject into a criminal intelligence file under 28 CFR Part 23?