HSC Legal Studies · Crime · Chapter 2 · Student worksheet
The Criminal Investigation Process — Activity Materials
Print or work on screen · pairs with the Chapter 2 lesson
Activity 1 — Police-powers scenario cards
Syllabus link: 2.1 police powers · 2.4 arrest · 2.6 detention & rights (apply LEPRA)
For each scenario decide: is the police action lawful? Name the power or right involved and, where you can, its source (aim for LEPRA). Give a one-line reason. Discuss the borderline ones with a partner.
Scenario A — stop & search
An officer searches Ana's bag because she "looked nervous" walking past a station. Nothing else.
Lawful?
Power/right & reason:
Scenario B — arrest vs CAN
Ben is caught littering. The officer handcuffs and arrests him to take him to the station.
Lawful?
Power/right & reason:
Scenario C — entering a home
Police push past Cara at her front door and search her lounge room. No warrant, no consent, no emergency.
Lawful?
Power/right & reason:
Scenario D — how long?
Dev is held and questioned for 9 hours straight, with no breaks and no charge. No detention warrant was sought.
Lawful?
Power/right & reason:
Scenario E — a lawyer, please
Before questioning Eli about a serious matter, police refuse his request to phone a lawyer.
Lawful?
Power/right & reason:
Extension
Write your own scenario where it's genuinely unclear whether the action is lawful, and swap with a partner.
Wrap-up question
In one sentence: what single test does most of Activity 1 come back to?
Activity 2 — "Bail or remand?" decision task
Syllabus link: 2.5 bail or remand — applying the Bail Act 2013 (NSW)
Use the two-step test. Step 1 — Show cause: is this a serious (show-cause) offence? If yes, the accused must show why detention is not justified. Step 2 — Unacceptable risk: is there an unacceptable risk of failing to appear, reoffending, endangering others, or interfering with witnesses/evidence — that conditions can't manage? Decide bail (list conditions) or remand, and give a reason.
Show cause = must justify releaseUnacceptable risk = refuse if unmanageableConditions: reporting · curfew · monitoring · non-contact · surety · surrender passport
| Accused | Show cause? Risk? Decision + reason |
| 1. First-time shoplifter, fixed address, minor charge. | |
| 2. Charged with a serious violent offence against a partner; prior breaches of an ADVO. | |
| 3. Charged with a serious offence allegedly committed while already on bail. | |
| 4. Accused experiencing homelessness; moderate charge; no fixed address. | |
Link it up
The Man Monis / Lindt Café siege case (2014) helped drive tougher NSW bail law. In one or two sentences, what is the trade-off lawmakers were trying to balance?
Activity 3 — Rights of suspects: gap-fill & matching
Syllabus link: 2.6 detention & interrogation, rights of suspects (Part 9 LEPRA)
Part A — Gap-fill
Fill each blank. (Word bank: 6 · 8 · charged or released · detention warrant · LEPRA · inadmissible · caution.)
After a lawful arrest, the initial investigation period is a maximum of hours. Police can apply for a to extend it by up to a further hours. At the end of the period the suspect must be . These rules are found in Part 9 of . Before questioning, police must give the suspect a . If police breach the rules, evidence they obtain may be ruled .
Part B — Match the right to its purpose
Draw a line (or write the number) matching each right to the purpose it serves.
Rights
- Right to silence
- The caution
- Right to contact a lawyer
- Support person (children / vulnerable)
- Interpreter
- Electronic recording of admissions
Purposes
- Prevents fabricated confessions ("verballing")
- Ensures understanding where English is limited
- You can't be forced to incriminate yourself
- Access to legal advice; guards against oppressive questioning
- Suspect knows anything said may be used in evidence
- Protects those who may not understand or may be pressured
Part C — Quick apply
Name two "time-outs" that pause the 6-hour clock (and so are not counted in the investigation period):
Take it further — resources
Real, reputable sources for your own research