Summary

Joseph McKenna Hipolite Egg Company v. United States…

The statute rests, of course, upon the power of Congress to regulate interstate commerce; and, defining that power, we have said that no trade can be carried on between the states to which it does not extend, and have further said that it is complete in itself, subject to no limitations except those found in the Constitution. We are dealing, it must be remembered, with illicit articles,-articles which the law seeks to keep out of commerce because they are debased by adulteration, and which punishes them (if we may so express ourselves) and the shipper of them.
Source: Wikisource

Joseph McKenna Hipolite Egg Company v. United States…

There is here no conflict of national and state jurisdictions over property legally articles of trade. The question here is whether articles which are outlaws of commerce may be seized wherever found; and it certainly will not be contended that they are outside of the jurisdiction of the national government when they are within the borders of a state. The question in the case, therefore, is, What power has Congress over such articles? Can they escape the consequences of their illegal transportation by being mingled at the place of destination with other property?
Source: Wikisource

Joseph McKenna Hipolite Egg Company v. United States…

In other words, transportation in interstate commerce is forbidden to them, and, in a sense, they are made culpable as well as their shipper. It is clearly the purpose of the statute that they shall not be stealthily put into interstate commerce and be stealthily taken out again upon arriving at their destination, and be given asylum in the mass of property of the state.
Source: Wikisource

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