CCP 3503     

Art. 3503.  Garnishment under writs of attachment or of sequestration

Except as otherwise provided by law and in the second paragraph of this article, garnishment under a writ of attachment or of sequestration is governed by the rules applicable to garnishment under a writ of fieri facias.

In garnishment under a writ of sequestration the only property that can be seized is property the ownership or possession of which is claimed by the plaintiff or on which he claims a privilege.