Does a restoration statute need to be an explicit statute to have civil rights restored?

There need not be an explicit restoration statute to have civil rights restored. Courts may "look to the whole of state law to determine whether [ ] civil rights were restored within the meaning of 921(a)(20)." Id. We have interpreted the statute's use of "restoration" as restoration of "those rights accorded to an individual by virtue of his citizenship in a particular state. These rights include the right to vote, the right to seek and hold public office and the right to serve on a jury." Id., quoting United States v. Cassidy, 899 F.2d 543, 549 (6th Cir.1990).