Why should you never power on a computer that you need to acquire digital evidence from?

The offset in a hexadecimal code is:

A forensics investigator is searching the hard drive of a computer for files that were recently moved to the Recycle Bin.
He searches for files in C:\RECYCLED using a command line tool but does not find anything.

What is the reason for this?

Travis, a computer forensics investigator, is finishing up a case he has been working on for over a month involving copyright infringement and embezzlement. His last task is to prepare an investigative report for the president of the company he has been working for. Travis must submit a hard copy and an electronic copy to this president.

In what electronic format should Travis send this report?

To preserve digital evidence, an investigator should ____________

Given the drive dimensions as follows and assuming a sector has 512 bytes, what is the capacity of the described hard drive?

22,164 cylinders/disk

80 heads/cylinder

63 sectors/track

Where does Encase search to recover NTFS files and folders?

Under confession, an accused criminal admitted to encrypting child pornography pictures and then hiding them within other pictures.

What technique did the accused criminal employ?

When needing to search for a website that is no longer present on the Internet today but was online few years back, what site can be used to view the website collection of pages view the website collection of pages?

What is the smallest physical storage unit on a hard drive?