Writ of Habeas Corpus.—Clause 2 provides: The privilege of the writ of habeas corpus shall not be suspended, unless when in cases of rebellion or invasion, the public safety may require it.

A writ of habeas corpus is a writ granted by a court, commanding an officer to produce before it a prisoner, in order that the court may inquire into the cause of his imprisonment or detention. If, after such inquiry, it is found that the person is detained for insufficient cause, he is granted his freedom.

President Lincoln and the Writ of Habeas Corpus.—President Lincoln, as a military necessity, in 1861, suspended the privilege of the writ over a limited area, constituting a large part of the State of Maryland. The Supreme Court, however, declared his order non-effective, maintaining that the right of suspending the writ of habeas corpus lay with Congress, though it might be granted to the President. This attempt on the part of the Supreme Court to restrain Mr. Lincoln was a failure, and shows that even the highest of our tribunals may not have its usual power in time of war. It was not until March 3, 1863, that Congress made the decree of President Lincoln legal by authorizing him to suspend the writ whenever he believed the public safety demanded it. In September of that year he declared the suspension general throughout the country.

Ex Post Facto Laws.—Clause 3. No bill of attainder or ex post facto laws shall be passed.

An ex post facto law, as defined by the Supreme Court, is a "law which renders an act punishable in a manner in which it was not punishable when it was committed." It applies to acts of a criminal nature only.[[37]]

Care of Public Money.—Clause 7. No money shall be drawn from the Treasury, but in consequence of appropriations made by law; and a regular statement and account of the receipts and expenditures of all public money shall be published from time to time.

It is proper in a government such as ours that the control of the public money should be lodged with the representatives of the people. Through the annual report of the Secretary of the Treasury, the people may know from what sources our revenues are derived and for what purposes the money is expended.

Titles of Nobility and Gifts.—Clause 8. No title of nobility shall be granted by the United States; and no person holding any office of profit or trust under them shall, without the consent of the Congress, accept of any present, emolument, office, or title of any kind whatever from any king, prince, or foreign state.

According to the wording of the clause, Congress may allow gifts, of the kind mentioned, to be accepted by our National officials. Usually, however, such gifts pass into the keeping of government.

Powers Denied the States.—We recall the power of the States and weakness of the general government under the Articles of Confederation. It was plain to the members of the Constitutional Convention that hopeless confusion would arise if the States should also be given the right to coin money, pass ex post facto laws, etc. Therefore, certain prohibitions were made on the powers of the States. In Section 10, Clause 1, we note that these prohibitions are absolute, as:—