Instead, that state was required, at the master's request, to seize and return him.
In fact, the delegates to the Constitutional Convention were afraid that the revolutionary ideology of freedom and equality had unwisely and unintentionally unleashed a social revolution.

Southern planters envisioned the end of slavery on which their wealth was based.

Northern capitalists were opposed to the liberal and democratic land laws which the people were demanding.

The economic leaders in both sections of the country believed that there was a need to protect property rights against these new revolutionary human rights.

While the Northern states strove to stabilize society in order to build a flourishing commerce, the Southern states tightened their control over their slaves fearing that insurrections from South America or ideas about freedom and equality from the American Revolution itself might inspire a serious slave rebellion.
Slave Insurrections From the time that the first African was captured until the completion of Emancipation, slaves struck out against the institution in one way or another.