Bail Jumping

 18 USC 3146, makes it a Federal crime or offense for anyone who has been released on bail to thereafter willfully fail to appear when required to do so.

A person can be found guilty of that offense only if all of the following facts are proved:

First: That the person had been admitted to bail pursuant to an order of a Judge or Magistrate of a Court with proper juridiction;

Second: That the person thereafter failed to appear before a Judge or Magistrate of a Court with proper juridiction as required; and

Third: That the person did so knowingly and willfully.