The St. Louis directory and register :

2. A person charged in any tale with treason, felony or other
crime, who shall flee from justice and found in another state, shall
on demand of the executive authority of the state from which be fled,
be delivered up, to be removed to the state, having jurisdiction of the
crime.

3. No person, held to service or labor in one state, under the
laws thereof, escaping into another, shall, in consequence of any law
or regulation therein, be discharged from such service or labor; but
shall he delivered up on claim of the party to whom such service or
labor may be due.