Civil rights issues.Quick check could take the following constitutional provision protecting the property of slave owners and what would be in advantage of this policy

The constitutional provision protecting the property of slave owners was the Fugitive Slave Clause, found in Article IV, Section 2, Clause 3 of the US Constitution. This clause required states to return escaped slaves to their owners, effectively treating slaves as property rather than as human beings with rights.

Advantages of this policy for slave owners included:
1. It ensured that slave owners could maintain control over their "property" and prevent slaves from escaping to freedom.
2. It provided a legal mechanism for slave owners to recapture escaped slaves, reducing the likelihood of slave rebellions or resistance.
3. It reinforced the institution of slavery and supported the economic interests of slave owners by protecting their investment in slaves.