Congress.
The Congress of the United States
The House of Representatives has the constitutional authority to bring charges (impeachment) on the President. However the Senate is the group that can put the president on trial for the charges brought by the house.
Petty crimes such as beating the hell out of people.
The federal courts here numerous types of court cases. A few of the cases are maritime law, copyright cases, patent cases, and bankruptcy.
Military courts.
The colonists trumped up murder charges against Smith, holding him responsible for the death of Robinson and Emry.
The executive branch appoints federal judges subject to Senate confirmation. Therefore, the President can try to choose people that share his judicial philosophy. The president can also grant pardons for federal crimes.
The Federal House of Representatives has the sole power to impeach or bring charges against government officials (except members of Congress.) A majority vote is needed in the House to Impeach. The Senate has the sole power to try the impeachment case. A two-thirds vote of the senators present is needed for conviction. When a president is tried, the Chief Justice of the Supreme Court presides over the Senate.
One of the crimes judged at the Nuremberg Trials was crimes against humanity, which included acts such as genocide, extermination, enslavement, and persecution of civilian populations.
Try the FBI Uniform Crime Report
If a person falls overboard, you should reach for a life preserver and try to help them.
The result of conviction after impeachment is removal from office- imprisonment is not a possibility from this process. Civil courts could indict and try him for crimes that could result in prison sentences upon conviction. The possible lengths of the sentences would depend on what the crimes were.