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Criminology Unit 3 | Latest Notes with Summary | Crime Control, Social Policy & Applied Criminology!!!!!!!!!!!!!
CRIMINOLOGY UNIT 3 | LATEST
NOTES WITH SUMMARY | CRIME
CONTROL, SOCIAL POLICY &
APPLIED CRIMINOLOGY
2026
, 1. AC 1.1 - Evaluatethe effectiveness of theroles of personnel involved incriminal investigations. (10
marks)
2. AC 1.2 assess the usefulness of theinvestigativetechniques incriminal investigations (20 marks)
3. AC1.3 explain howevidenceis processed (6 marks)
4. AC 1.4 examinethe rights of individuals incriminal investigations (6 marks)
5. AC 2.1 explain therequirements of the crown prosecution service(CPS) forprosecuting suspects (4
marks)
6. AC 2.2 describe trial processes (4 marks)
7. AC 2.3 understand rules in relation tothe useof evidencein criminal cases (4 marks)
8. AC 2.4 assess key influences affecting theoutcomes of criminal cases (10 marks)
9. AC2.5 discuss the use of lay peopleincriminal cases (6 marks)
10. AC 3.1 examineinformation forvalidity(15 marks)
11. AC 3.2 Draw conclusions frominformation (15 marks)
AC 1.1 - Evaluatethe effectiveness of theroles of personnel involved incriminal investigations. (10 marks)
Crime scene investigators
Role:
A crime scene investigators role is to collect and preserve evidence from the crime scene. They main
responsibility is to ensure that the evidence at the scene is not contaminated as tis would therefore mean it will
not be admissible in court. work together with the police to decide what evidence is vital and decide the best
way in order to gather it. They photograph the crime scene as well as any surrounding areas that contain
evidence, using the common approach path. Once they haveobtained all the evidence, they have to pack and
document everything so it is ready to be sent off for analysis by forensicspecialists. In addition to this, the may
also attend post mortems and giveevidence in court.
Effectiveness:
Expertise- CSIs are experts in their fieldas they undergo through training and many also have adegree in a
science related field. This would imply that they have a great deal of expertise as they have had the necessary
training in order to carry out their role effectively.
Availability- CISs are available 24/7 as they work on an on-call basis. This means that they could be called to a
crime scene at any time of the day. This is essential as of course crimes can be committed at any time, and so its
important that crime scene investigators can arrive at the scene quickly in order to obtain evidencebeforeit may
be possiblycontaminated by factors such as the weather.
Cost- Each CSI gets paid a salary, and so this will therefore incur additionalcosts to the investigation.
Otherevaluativepoints:
, • The samples that CSI’s collect may be ahazard to their health and safety, so these rusks need to be
calculated and the appropriate measurestaken in order to minimize the risk of harm
• The role can be taking a toll on CSI’s mental wellbeing due to the nature of the scenes that they
may attend to
, • The weather could contaminate the crime scene
• They may be able to provide asuspect’s innocence throughDNA orfingerprints testing.
Caseexample- Amanda Knox:
• Exchange student founddead in herflat In Italy, friend Knoxsuspectedof murder.
• Contamination of evidence, failures to document evidence, planted evidence to falsely incriminate
Strength
• CISs may gather evidence that conclusivelylinks suspects to crime scenesand victims
• The evidence may also proveconclusively that asuspect is in fact innocent, e.g., when their
fingerprints do not match those found by the CSI at the crime scene
Criminology Unit 3 | Latest Notes with Summary | Crime Control, Social Policy & Applied Criminology!!!!!!!!!!!!!
CRIMINOLOGY UNIT 3 | LATEST
NOTES WITH SUMMARY | CRIME
CONTROL, SOCIAL POLICY &
APPLIED CRIMINOLOGY
2026
, 1. AC 1.1 - Evaluatethe effectiveness of theroles of personnel involved incriminal investigations. (10
marks)
2. AC 1.2 assess the usefulness of theinvestigativetechniques incriminal investigations (20 marks)
3. AC1.3 explain howevidenceis processed (6 marks)
4. AC 1.4 examinethe rights of individuals incriminal investigations (6 marks)
5. AC 2.1 explain therequirements of the crown prosecution service(CPS) forprosecuting suspects (4
marks)
6. AC 2.2 describe trial processes (4 marks)
7. AC 2.3 understand rules in relation tothe useof evidencein criminal cases (4 marks)
8. AC 2.4 assess key influences affecting theoutcomes of criminal cases (10 marks)
9. AC2.5 discuss the use of lay peopleincriminal cases (6 marks)
10. AC 3.1 examineinformation forvalidity(15 marks)
11. AC 3.2 Draw conclusions frominformation (15 marks)
AC 1.1 - Evaluatethe effectiveness of theroles of personnel involved incriminal investigations. (10 marks)
Crime scene investigators
Role:
A crime scene investigators role is to collect and preserve evidence from the crime scene. They main
responsibility is to ensure that the evidence at the scene is not contaminated as tis would therefore mean it will
not be admissible in court. work together with the police to decide what evidence is vital and decide the best
way in order to gather it. They photograph the crime scene as well as any surrounding areas that contain
evidence, using the common approach path. Once they haveobtained all the evidence, they have to pack and
document everything so it is ready to be sent off for analysis by forensicspecialists. In addition to this, the may
also attend post mortems and giveevidence in court.
Effectiveness:
Expertise- CSIs are experts in their fieldas they undergo through training and many also have adegree in a
science related field. This would imply that they have a great deal of expertise as they have had the necessary
training in order to carry out their role effectively.
Availability- CISs are available 24/7 as they work on an on-call basis. This means that they could be called to a
crime scene at any time of the day. This is essential as of course crimes can be committed at any time, and so its
important that crime scene investigators can arrive at the scene quickly in order to obtain evidencebeforeit may
be possiblycontaminated by factors such as the weather.
Cost- Each CSI gets paid a salary, and so this will therefore incur additionalcosts to the investigation.
Otherevaluativepoints:
, • The samples that CSI’s collect may be ahazard to their health and safety, so these rusks need to be
calculated and the appropriate measurestaken in order to minimize the risk of harm
• The role can be taking a toll on CSI’s mental wellbeing due to the nature of the scenes that they
may attend to
, • The weather could contaminate the crime scene
• They may be able to provide asuspect’s innocence throughDNA orfingerprints testing.
Caseexample- Amanda Knox:
• Exchange student founddead in herflat In Italy, friend Knoxsuspectedof murder.
• Contamination of evidence, failures to document evidence, planted evidence to falsely incriminate
Strength
• CISs may gather evidence that conclusivelylinks suspects to crime scenesand victims
• The evidence may also proveconclusively that asuspect is in fact innocent, e.g., when their
fingerprints do not match those found by the CSI at the crime scene
