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Digital Evidence has changed in the last thirty years due to the increase of mobile and technology devices. Back then not everybody had touchscreen phones and high speed tech devices and WiFi. Where we would be without digital evidence is that half of the investigation cases will be useless and there wouldn't be any trace, probably 50% of the world would lose access to digital footprints and everything would be useless. Digital Evidence is a reliable resource due to the things that are hidden and not seen by others. For example if there was no digital evidence there wouldn't be a dark web. There wouldn't be any cases solved, illegal rings busted, and digital footprints leading back to everyone.

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The evidence that was filed against Krenar Lusha was physical.

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Krenar Lusha committed his crime due to the pure hatred of Jewish, Islamic, and Americans. He studied Islamic and Arabic in Qatar as a child and felt as if it wasn't possible to be comfortable to discuss.

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Krenar Lusha is an illegal immigrant that resides in the United Kingdom that had ties to searching information regarding to explosives, denotators, and search belts. The crime occurred in his apartment where investigators had a search warrant. They ended up finding him downloading video films called "The Hezbollah Military Instructions Manual and Detectable Mobile Denotators".  They also found petrol bomb components, firearm ammunition, 14 cell phones, and computer devices called "Ragnar's Denotators" and "The Bomb Book" . Lusha also had posts regarding to terrorists posts and ill intentions towards Jewish and Americans.

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Digital evidence can be gathered through emails, transactions, images, internet history, and computer documents.

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Encryption is the process converting information or data into a code, especially to prevent unauthorized access. Forensic Databasers use "cryptanalysis" to retrieve the encrypted data and is useful for digital investigators. Encryption pertains to digital forensics by the use of cryptography and its techniques in digital forensics is widely increasing. Investigators are limited to information on devices that they can access. When a hard drive is completely encrypted, the digital forensic investigators have difficulty in finding the stored data and the investigative options are limited. Some examples are computer documents, emails, text and instant messages, transactions, images and internet history. This information can be gathered from electric devices and used as evidence.

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Digital Evidence is preserved by the isolation and protection of evidence found without alteration. It is also gathered in collection due to the gathering of devices and the duplication of "electronically stored information" (ESI) for the purpose of preserving digital evidence that remains untouched while digital forensics is performed.

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Chain of Custody in digital forensics can have multiple meanings. Digital Forensics can also be known as the paper trail or forensic link, or chronological documentation of the evidence. Chain of custody indicates the collection, sequence of control, transfer and analysis. It also documents details of each person who handled the evidence, date and time it was collected or transferred, and the purpose of the transfer. It demonstrates trust to the courts and to the client that the evidence has not tampered. It can also be referred to as the logical sequence that records the sequence of custody, control, transfer, analysis and disposition of physical or electronic evidence in legal cases.

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The challenges faced with digital forensics is network spawns and multiple time zones in multiple jurisdictions, network data being available (on and off online), and huge bandwidths. This also includes hardware issues, software issues, and legal issues. Digital forensics includes a chain of custody that explains the logical sequence that records the sequence of custody, control, transfer, analysis and disposition of physical or electronic evidence in legal cases. Each step in the chain is essential as if broke, the evidence may be rendered inadmissible. This preserves that the chain of custody is about following the correct and consistent procedure and hence ensuring the quality of evidence.

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Digital Forensics is the application of computer science procedures involving the examination of digital evidence. This process is used to analyze data while preserving information and maintaining a strict chain of custody.The challenges that is faced with digital forensics is data breach, tampering, diversity of digital devices, data type and volume.

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Encryption is the process of converting information or data into a code especially to prevent unauthorized access. The encryption process translates information using an algorithm that makes information unreadable. Encryption correlates with digital evidence because of the limited information on a device we possess.