Espionage

Espionage is the offense of unlawfully gathering, transmitting, or attempting to obtain a state's classified or otherwise protected information, typically on behalf of a foreign government or other outside party, without the aid-to-an-enemy element that distinguishes the more severe offense of treason. Most legal systems punish espionage through dedicated statutes covering the unauthorized disclosure or transmission of national-defense or classified information, and many jurisdictions distinguish traditional espionage, involving human intelligence gathering and clandestine communication, from economic or industrial espionage, the theft of a private company's trade secrets or proprietary technology on behalf of a competitor or a foreign state, which several jurisdictions now punish under separate or parallel statutes. Espionage prosecutions present distinctive evidentiary and procedural challenges compared with most other offenses, since proving the offense frequently requires disclosing at least some of the very classified or sensitive information the case concerns, a tension that has shaped specialized legal procedures in many jurisdictions for handling classified evidence in criminal trials. Cyber espionage, the use of computer intrusion techniques to remotely access and exfiltrate a target government's or company's protected information rather than through a human agent operating on the ground, has become an increasingly significant and separately studied subtype of the offense as intelligence-gathering has migrated substantially into digital networks and systems.