PDF Notes: ICS443-Digital Forensics-Week 03 (8-12 Mar 2026)

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    What causes loss of integrity in evidence?

    Tampering, contamination, deterioration, and mislabeling can compromise evidence.

    How does tampering affect evidence integrity?

    It can alter or destroy the original state of the evidence.

    What are tamper-evident seals?

    Seals that show visible signs of tampering when opened.

    What is a key procedure to prevent accidental contamination?

    Using personal protective equipment and isolating evidence.

    Why is contemporaneous note taking important?

    It documents compliance with procedures and maintains chain of custody.

    What is the purpose of appropriate packaging in evidence storage?

    To protect evidence from deterioration and contamination.

    What does qualitative analysis in forensic evidence focus on?

    Identifying the nature or identity of a substance.

    How does quantitative analysis differ from qualitative analysis?

    It measures the amount or concentration of a substance.

    What principle states that every contact leaves a trace?

    Locard’s exchange principle.

    What are class characteristics in evidence comparison?

    Traits that categorize an object into a specific group.

    What is the significance of crime reconstruction?

    It helps establish the sequence of events during a crime.

    What causes loss of integrity in evidence?

    Tampering, contamination, deterioration, and mislabeling can compromise evidence.

    How does tampering affect evidence integrity?

    It alters or destroys the original state of the evidence.

    What are tamper-evident seals?

    Seals that show visible signs of tampering when opened.

    What is a key procedure to prevent accidental contamination?

    Using personal protective equipment and isolating evidence.

    How can deterioration of evidence be minimized?

    By using appropriate packaging and storage methods.

    What is the role of SOPs in evidence handling?

    They provide guidelines to prevent mislabeling and contamination.

    What does qualitative analysis focus on?

    It provides information about the identity of an entity.

    What is the difference between qualitative and quantitative analysis?

    Qualitative analysis identifies substances; quantitative measures their amount.

    What principle states that every contact leaves a trace?

    Locard’s exchange principle highlights the connection between crime scene and evidence.

    What is the purpose of comparing evidence?

    To establish class characteristics and links between different pieces.

    What causes loss of integrity in evidence?

    Tampering, contamination, deterioration, and mislabeling can compromise evidence.

    How does tampering affect evidence integrity?

    It alters or destroys the original state of the evidence.

    What are tamper-evident seals?

    Seals that show visible signs of tampering when opened.

    What is a key procedure to prevent accidental contamination?

    Using personal protective equipment and isolating evidence.

    Why is contemporaneous note taking important?

    It documents compliance with procedures and maintains chain of custody.

    What is the purpose of standard operating procedures (SOPs) in evidence handling?

    To minimize risks of contamination and mislabeling.

    What does qualitative analysis in forensic evidence focus on?

    Identifying the nature or identity of a substance.

    How does quantitative analysis differ from qualitative analysis?

    It measures the amount or concentration of a substance.

    What principle states that every contact leaves a trace?

    Locard’s exchange principle.

    What is the significance of class characteristics in evidence comparison?

    They categorize objects into specific groups based on shared traits.

    What happens if evidence packaging is not properly sealed?

    It may lead to tampering or contamination of the evidence.

    What is the role of logging systems in evidence management?

    To track the handling and storage of evidence throughout the process.

    What causes loss of integrity in evidence?

    Tampering, contamination, deterioration, and mislabeling can compromise evidence.

    How does tampering affect evidence integrity?

    It alters or destroys the original state of the evidence.

    What are tamper-evident seals?

    Seals that show visible signs of tampering when opened.

    What is a key procedure to prevent accidental contamination?

    Using personal protective equipment and isolating evidence.

    How can deterioration of evidence be minimized?

    By using appropriate packaging and storage methods.

    What is the role of SOPs in evidence handling?

    They provide guidelines to prevent mislabeling and contamination.

    What does qualitative analysis focus on?

    Identifying the nature or identity of a substance.

    What is the difference between qualitative and quantitative analysis?

    Qualitative analysis identifies substances; quantitative measures their amount.

    What principle states that every contact leaves a trace?

    Locard’s exchange principle.

    What is the purpose of comparing evidence?

    To establish links between suspects, victims, and crime scenes.

    What happens if evidence packaging is opened improperly?

    It can compromise the integrity of the evidence seals.

    Why is contemporaneous note-taking important?

    It documents compliance with evidence handling procedures.