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Digital evidence has changed dramatically over thirty years, becoming more effective in solving crime. This source is valuable because it uses information from cellphones and other technology to solve crimes.Important evidence can be held on technology making it easier to solve crimes. Without digital evidence many important cases involving serial killers such as the BTK killer. There has even been a case solved because Siri was being used to ask a question involving the crime.

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Case of the 'Suitcase killer' Melanie McGuire 

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Case of the 'Suitcase killer' Melanie McGuire 

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-Accused of killing her husband and cutting him up and distributing his body parts in three separate suitcases
-she was a nurse
-had an affair with a co-worker

In May 5, 2004 a fisherman found the first bag in the Chesapeake Bay, Virginia and noticed a suitcase was floating. The body parts were in a black plastic bag inside of the suitcase (male legs). Six days a student was on fisherman's island and found another suitcase (torso and head).Shot multiple times in the torso and one in the head. The third suitcase contained the pelvis and was found by another fisherman in the same bay in Virginia. Two days before he went missing she purchased a gun and claims her husband told her to buy it because he had a felony record of reckless driving. They confiscated her computer after investigation and seen in her search history "how to commit murder" which was a key find in the overall investigation.

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How is digital evidence preserved, ways digital evidence can be presented and what is encryption?

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How is digital evidence preserved, ways digital evidence can be presented and what is encryption?

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Digital evidence is mainly done in either physical or digital storage systems such as computer hard drives or a mobile device. Digital evidence can be presented on Computer documents, emails, text and messages, images, etc. Encryption involves converted information into secret codes that hides the information's true meaning.

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Describe and define the chain of custody for digital evidence. 

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Describe and define the chain of custody for digital evidence. 

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The chain of custody for digital evidence is described as a process that tracks the movement of evidence through its collection and analysis by keeping up with who dealt with the evidence, and the time it was collected and transferred.

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Challenges associated with digital forensics?

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Challenges associated with digital forensics?

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Although there are many positives associated with digital forensics, there also are challenges that make it a little harder to solve criminal cases such as explosion of problems, access management, transfer of data, errors and misshapes, etc.

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Evidence that is stored and transmitted, can be relied on in court. It can be found on a computer hard drive, a mobile phone and in other places.