What does Locard's Exchange Principle state?

Any information of probative value that is either stored or transmitted in a digital form

Digital evidence must have some characteristics to be disclosed in the court of law

Anyone or anything, entering a crime scene takes something of the scene with them, and leaves something of themselves behind when they leave

Forensic investigators face many challenges during forensics investigation of a digital crime, such as extracting, preserving, and analyzing the digital evidence