Is “gun control” an effective strategy in controlling gun-crime?

Does restricting the law-abiding citizen’s access to firearms reduce gun-crime? Subsequent to 31-years in law enforcement, I say NO…when firearms are regulated-restricted-banned by the government only criminals will possess them and the law-abiding citizenry made victims by government fiat. The ONLY solution to gun-crime is assured punishment through lengthy incarceration without parole.