CIAC CIAC Criminal Network Analysis 1 — Questions and Answers
Question 1: In Social Network Analysis (SNA), a 'node' most commonly represents:
- A geographic crime hotspot
- An individual, organization, or entity in a network (Correct answer)
- A communication channel between two suspects
- A transaction record in financial data
Correct answer: An individual, organization, or entity in a network
In SNA, nodes represent the actors—individuals, groups, or organizations—that are connected within a network.
Question 2: What does 'betweenness centrality' measure in a criminal network?
- The total number of direct connections a node has
- The degree to which a node lies on the shortest path between other nodes (Correct answer)
- The geographic distance between linked actors
- The financial value of transactions between nodes
Correct answer: The degree to which a node lies on the shortest path between other nodes
Betweenness centrality identifies nodes that serve as critical bridges or brokers within a network by measuring how often they appear on shortest paths.
Question 3: A criminal network's 'key node' is best identified by its:
- Age and criminal history
- High degree of centrality and influence over information or resource flow (Correct answer)
- Geographic proximity to a crime scene
- Number of prior convictions
Correct answer: High degree of centrality and influence over information or resource flow
Key nodes in criminal networks are identified by their centrality metrics, showing they control the flow of information, resources, or coordination.
Question 4: Which software platform is most widely used by US law enforcement for link analysis and criminal network visualization?
- Microsoft Excel
- IBM i2 Analyst's Notebook (Correct answer)
- Google Analytics
- SPSS Statistics
Correct answer: IBM i2 Analyst's Notebook
IBM i2 Analyst's Notebook is the industry-standard tool for link analysis and visual network mapping in law enforcement intelligence.
Question 5: A 'link' in social network analysis of criminal organizations represents:
- The legal jurisdiction connecting two courts
- A relationship or connection between two nodes such as communication, association, or transaction (Correct answer)
- A physical pathway between two crime scenes
- A shared DNA profile between suspects
Correct answer: A relationship or connection between two nodes such as communication, association, or transaction
Links represent the connections or relationships—such as calls, meetings, or transactions—between two actors in the network.
Question 6: In criminal network analysis, 'degree centrality' refers to:
- The geographic spread of a criminal network
- The number of direct connections a node has to other nodes (Correct answer)
- The seniority level of a criminal organization's leader
- The frequency of criminal activity at a specific location
Correct answer: The number of direct connections a node has to other nodes
Degree centrality simply counts the number of direct links a node has, indicating how well-connected that actor is in the network.
CIAC CIAC Criminal Network Analysis 1
In Social Network Analysis (SNA), a 'node' most commonly represents: