assassinate
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.
(adj) most important or serious
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.
planning to overthrow the queen
While it is not illegal to be a "racist" any crime proven to be specifically committed against a person(s) due to their race, gender, sexuality, or religion is considered a hate crime which can and most often results in a felony charge.
CRIMES AGAINST NATIONAL SECURITY Section One. - Treason and espionage, Art. 114. Treason Art. 117. Espionage.
crime
Doug Most has written: 'Always in our hearts' -- subject(s): Case studies, Crime against, Murder, Infants, Teenagers, Biography, Crime, Crimes against
Murder.
United Nations Office on Drugs and Crimes is the most recognized name against organized crime. The National White Collar Crime Center and the National Institute of Justice also have interest groups against organized crime.
No. There are no cases of dogs having the HIV virus. That said, sex with animals (bestiality) is a serious crime in most countries round the world.