In most criminal cases, the state will have jurisdiction over the case
and they will be responsible for trying the case. When the crime occurred
on government property, involved crossing state lines or country borders,
or involved kidnapping, it could be a federal offense. If this is the
case, government agencies like the Federal Bureau of Investigation and
the Drug Enforcement Agency will be responsible for investigating the
case. As these agencies have considerably more manpower and resources,
it is important that you have a skilled defense attorney on your side
who understands how these cases work.