Skip to content
Criminology · Year 13

Active learning ideas

Personnel Involved in Criminal Investigations

This topic examines the multidisciplinary teams required to move a case from a crime scene to a courtroom. Students explore the specific remits of Police Officers, Crime Scene Investigators (CSIs), Forensic Scientists, and Pathologists. Understanding these roles is vital for Year 13 students as they must evaluate the effectiveness of personnel in securing reliable evidence, a core requirement of the WJEC Level 3 Criminology specification.

National Curriculum Attainment TargetsWJEC Level 3 AC 1.1 Evaluate the effectiveness of the roles of personnel involved in criminal investigationsWJEC Level 3 AC 1.2 Assess the usefulness of investigative techniques in criminal investigations
40–50 minSmall Groups3 activities

Activity 01

Role Play45 min · Small Groups

Role Play: The Multi-Agency Briefing

Assign students roles as Senior Investigating Officers, CSIs, and Pathologists. Provide a crime scene brief and have them negotiate who takes priority at the scene to avoid cross-contamination while ensuring all evidence is captured.

What are the specific roles of forensic experts at a crime scene?
ApplyAnalyzeEvaluateSocial AwarenessSelf-Awareness
Generate Complete Lesson

Activity 02

Stations Rotation40 min · Small Groups

Stations Rotation: Specialist Remits

Set up four stations representing the Police, CSI, Lab, and Mortuary. At each station, groups must identify three specific limitations of that role, such as budget constraints or time-sensitive evidence degradation.

How do police coordinate with specialists during an investigation?
RememberUnderstandApplyAnalyzeSelf-ManagementRelationship Skills
Generate Complete Lesson

Activity 03

Inquiry Circle50 min · Small Groups

Inquiry Circle: Case Failure Analysis

Provide students with a real-world case where an investigation failed, such as the Amanda Knox or Stephen Lawrence cases. Groups must pinpoint exactly which personnel failed in their duty and how it impacted the trial outcome.

What limitations do these personnel face in their day-to-day operations?
AnalyzeEvaluateCreateSelf-ManagementSelf-Awareness
Generate Complete Lesson

A few notes on teaching this unit


Watch Out for These Misconceptions

  • The 'CSI Effect' belief that one person does everything from interviewing suspects to DNA analysis.

    In the UK system, roles are highly siloed to prevent bias and ensure expertise. Using a station rotation activity helps students see the physical and procedural distance between the police and the independent forensic laboratories.

  • Pathologists only determine the cause of death.

    Pathologists also provide vital information on the time of death and the nature of the weapon used. Peer teaching sessions where students present on specific experts can help clarify these nuanced responsibilities.


Methods used in this brief