treason
Not necessarily, because those others may be guilty by association. For example, if only one person actually robbed a bank but someone else drove the getaway car, the driver would be guilty of the crime by his association with it and helping for the crime to be committed successfully.
they may have wished that they had committed the crime, or are delusional and actually believe that they had. Others may admire the person who comited the crime and would like to take the recognition
Accessory. Aiding or abetting.
Based on the Constitution, a person is charged with a serious crime in one state and then flees to another state can be arrested. He will then be brought back to the state where the crime was committed and all the necessary processes will be executed there.
No. If you committed that crime in one county and were arrested, tried, and convicted of THAT crime - it does NOT protect you from being charged and tried for an identical, but seperate, crime you committed in another location. If you committed TWO identical offenses, the fact that you were convicted of one in one county, does not protect you from the consequences of the crime you committed in another county.
Article I, Section 9, Clause 3 of the Constitution prohibts Congress from passing ex post facto laws. Bear in mind this applies to the Federal level only. States are also generally prohibited from passing such laws as well but these prohibitions would be found in state constitutions or statutes.
"Conspiracy" implies that more than one individual was involved (e.g.: a shoplifting gang?) all members of the gang can be prosecuted for the actual offense just as if they were the one who actually committed the crime.
Question isn't very clear, but yes, you CAN be charged as an accomplice or a co-conspirator for a crime what was being planned, but for one reason or another was never committed.
If you have not committed a crime in the state you live in, then no you can't be charged twice of the same offense. That would be double jepordy, and is against the law. Your home state CAN hold you until the state you committed the crime in either extradites you or drops the chargesAdded: The above answer seems unclear.If you committed a crime in state "A" and then committed the same crime in state "B" then BOTH states can charge you seperately, because you committed a separate crime in each state.If you committed a crime only in state "A" but then fled to state "B," state "B" cannot try you for a crime you committed in another state. HOWEVER they can hold you in jail until state "A" comes for you to return you to state "A" for prosecution .
Immunity.
Every country has one. It means that if you committed any sort of crime, they would add your name and crime to the database, this can be useful to find out if someone has history with a certain crime.
Kings were exonerated from crimes if one or more were committed so if he did commit one, no one would bring it forward to court. Hammurabi was known to be a just King.