Court decisions that become a body of law in a jurisdiction are called case law. These decisions are also often referred to as "precedents" and are bound in volumes called "reporters." For print collections of reporters, one generally needs to visit a law library.
The Gaston County Public Library does not have a case law collection and most online case law is only available for a fee through a vendor.
Gaston County Courthouse
325 Dr. Martin Luther King Jr. Way704-852-3100
http://www.nccourts.org/County/Gaston/Default.asp
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