An overview of the process of forensic science and investigations

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An overview of the process of forensic science and investigations

Overview[ edit ] In the early s personal computers became more accessible to consumers, leading to their increased use in criminal activity for example, to help commit fraud.

At the same time, several new "computer crimes" were recognized such as cracking. The discipline of computer forensics emerged during this time as a method to recover and investigate digital evidence for use in court. The discipline also features in civil proceedings as a form of information gathering for example, Electronic discovery Forensic techniques and expert knowledge are used to explain the current state of a digital artifact, such as a computer system, storage medium e.

In a book, Computer Forensics, authors Kruse and Heiser define computer forensics as involving "the preservation, identification, extraction, documentation and interpretation of computer data".

However, while several methods can be used to extract evidence from a given computer the strategies used by law enforcement are fairly rigid and lack the flexibility found in the civilian world.

Introduction

This requires that information be authentic, reliably obtained, and admissible. In the United Kingdomexaminers often follow Association of Chief Police Officers guidelines that help ensure the authenticity and integrity of evidence.

While voluntary, the guidelines are widely accepted in British courts. Computer forensics has been used as evidence in criminal law since the mids, some notable examples include: Dennis Rader was convicted of a string of serial killings that occurred over a period of sixteen years.

Towards the end of this period, Rader sent letters to the police on a floppy disk. Metadata within the documents implicated an author named "Dennis" at "Christ Lutheran Church"; this evidence helped lead to Rader's arrest.

A spreadsheet recovered from Duncan's computer contained evidence that showed him planning his crimes. Prosecutors used this to show premeditation and secure the death penalty.

Hundreds of emails on Lopatka's computer lead investigators to her killer, Robert Glass.

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This case confirmed parties' duties to preserve digital evidence when litigation has commenced or is reasonably anticipated. Hard drives were analyzed by a computer forensics expert who could not find relevant emails the Defendants should have had. Though the expert found no evidence of deletion on the hard drives, evidence came out that the defendants were found to have intentionally destroyed emails, and misled and failed to disclose material facts to the plaintiffs and the court.

Conrad Murray, the doctor of the deceased Michael Jacksonwas convicted partially by digital evidence on his computer. This evidence included medical documentation showing lethal amounts of propofol. Digital forensic process A portable Tableau write blocker attached to a Hard Drive Computer forensic investigations usually follow the standard digital forensic process or phases which are acquisition, examination, analysis and reporting.

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Investigations are performed on static data i. This is a change from early forensic practices where a lack of specialist tools led to investigators commonly working on live data.The Forensic Examiner ® is the official peer-reviewed journal of the American College of Forensic Examiners Institute.

An overview of the process of forensic science and investigations

This site serves as your source of information for all aspects of the journal, including article archives, . To post a job with AAFS login to or create an AAFS Account Portal, Select "Create/Update Job Postings".

*You do not need to be a member of AAFS to submit a Job Listing. Forensic Science 2 Curriculum Unit Overview Participating students (primarily designed for 3rd-6th grade but applicable for middle school as well) will use forensic science techniques to preserve physical evidence and solve a fictional crime.

We’ve divided the computer forensic examination process into six stages, presented in their usual chronological order.

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Computer forensics - Wikipedia The present day picture of crime investigation and prosecution of criminals is a sad story. A large percentage of the murder trials, ultimately, end in acquittal.
Quick Links Forensics in antiquity The ancient world lacked standardized forensic practices, which aided criminals in escaping punishment. Criminal investigations and trials heavily relied on forced confessions and witness testimony.
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Forensic science - Wikipedia