CRIMES AGAINST NATIONAL SECURITY
Section One. - Treason and espionage, Art. 114. Treason Art. 117. Espionage.
All crimes are illegal. If you're talking about which crime is the most serious, this is a matter of opinion. But most people agree that the most serious crime one can ever commit is first-degree murder with aggravating factors.
Treason.
assassinate
(adj) most important or serious
planning to overthrow the queen
There are only two levels of criminal offense. Misdemeanors being the so-called 'lesser' crimes, and felonies being the most serious ones. Espionage and Treason are both felonies and not separate classification of crime.
crime
It will depend on the classification of the crime in question. In California it is most likely to be one year.
It will depend on the specific classification of the crime in question. In Arizona it is most likely to be one year.
The most serious crime that has happened in Egypt was: A 7 year old boy was walking down the street and saw a penny and stole it
Legally speaking, the crime that carries the harshest of punishments is murder, especially first degree (premeditated) murder. The U.S. Supreme Court just ruled that this is the only crime that may warrant the death penalty.
Any classification of this type is not too serious. But the life is generally organic chemistry.