Apply stop, search and arrest safeguards
Identify the statutory power and its threshold instead of treating every police encounter as the same procedure.
Section 1.2.4 · Police powers and safeguards
Exam scope and assessment notes
AS and full A Level · section 1.2.4. Original educational scenarios about the law of England and Wales, checked on 14 October 2026. Model answers are formative reasoning, not advice about a real dispute, Cambridge marks or predicted grades. Read the exact statute, case and exam-year source where a rule is disputed or changes. A larger annotated authority bank, full unseen papers and specialist law-teacher review remain outstanding.
Before you begin
- Read a short source carefully and separate its rule from the facts
- Explain which element a fact supports and what is still uncertain
Work on paper. Try each question before revealing help, and explain why your method works.
Quick readiness check
What should a legal problem answer connect?
What you will learn
- Explain PACE stop/search and arrest requirements
- Distinguish ordinary powers from separate drug and terrorism provisions
Select the actual legal power
PACE sections 1–7 and Code A govern specified stop/search powers, including the relevant suspicion and information/record requirements. The power concerns authorised objects and circumstances, not an unrestricted search for anything an officer might find. A conversation or request for cooperation is different from a statutory search.
Other Acts supply distinct powers, such as the Misuse of Drugs Act 1971 and Terrorism Act 2000. Some specially authorised searches operate under different thresholds. Always state which provision applies; the existence of a special power does not remove ordinary requirements from every police encounter.
Arrest needs its own justification
PACE section 24, as amended, and Code G require the relevant grounds and necessity criteria for arrest. Suspicion of an offence and necessity for arrest are related but separate questions. Reasons for necessity can concern identification, protection or prompt and effective investigation under the statutory scheme.
A strong answer identifies the suspected offence, concrete grounds, the applicable power and whether its safeguards were followed. Race, appearance or broad stereotypes alone should not be substituted for evidence-based grounds. A procedural defect raises consequences that need analysis; it does not automatically prove every piece of evidence inadmissible.
Sources for this lesson
Pause and explain
Does suspicion alone settle every requirement for arrest under PACE section 24?
Worked example
In a fictional ordinary PACE search, an officer gives only a general stereotype as the reason and no specific facts. What should be examined?
Show the worked solution
- Identify the ordinary PACE power and required grounds.
- Separate a stereotype from concrete grounds.
- Check information, record and other safeguards.
Answer The answer should examine whether the required reasonable grounds and safeguards are met. A stereotype alone is not a substitute for the factual basis of this ordinary power; different authorised powers must not be invented to rescue the scenario.
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Test this topic →From guided practice to a new situation
Write your answer and reasoning first. Use a hint only if you are stuck. The model solution is for self-checking; your written work is not automatically marked.
Guided: Explain why the ordinary-search example needs concrete grounds rather than a stereotype.
Give me a hint
Apply the specified ordinary power.
Compare my reasoning
- The scenario uses an ordinary PACE search.
- Its threshold needs a factual basis.
- A stereotype does not identify relevant evidence.
The stated power must be justified on its own grounds. A general stereotype supplies no concrete link to the authorised search object or suspected circumstances, so the answer should scrutinise the factual basis and safeguards.
Look for these in your work
- Uses the stated power
- Distinguishes facts from stereotypes
- Identifies the safeguard issue
Independent: Explain why a drug-search power cannot simply be assumed in every theft investigation.
Give me a hint
The statutory objects and thresholds differ.
Compare my reasoning
- Identify the investigation's facts.
- Identify the power's authorised subject matter.
- Do not switch provisions without matching conditions.
Each power has its own subject matter and threshold. A theft investigation does not automatically satisfy a drugs provision, so a legal answer must connect the facts to the specific power instead of treating police authority as interchangeable.
Look for these in your work
- Identifies separate powers
- Uses their conditions
- Avoids an invented justification
Application: A fictional officer has reason to suspect an offence but gives no explanation of arrest necessity. Assess the analysis still needed.
Give me a hint
Check each statutory requirement separately.
Compare my reasoning
- Suspicion can address one requirement.
- Necessity remains a distinct question.
- Relevant facts and Code G safeguards need examination.
The suspicion evidence does not complete the arrest analysis. The answer must assess an applicable necessity reason and the procedure under PACE and Code G; it should not announce validity solely from suspicion.
Look for these in your work
- Separates the requirements
- Identifies missing analysis
- Uses the legal framework
Common mistakes
- Assuming all searches use one threshold
- Treating suspicion and arrest necessity as identical
- Using stereotypes instead of stated evidence
What can you explain now?
Does suspicion alone settle every requirement for arrest under PACE section 24?
Compare with the explanation
No, the relevant necessity requirement must also be examined
The statutory grounds and necessity criteria both matter.
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Make it stick
Does suspicion alone settle every requirement for arrest under PACE section 24?
If you needed the solution, close it and solve the problem again from a blank page. A correct answer is stronger when you can explain the reason for each step.