Evidence of Prior Conviction of Defendant Charged with Possession of a Firearm by a Convicted Felon (18 U.S.C. Sec. 922(g)) is a type of evidence used to demonstrate that the defendant was previously convicted of a felony, such that they are now prohibited from possessing a firearm. This type of evidence is typically used in criminal cases brought under the federal statute 18 U.S.C. Sec. 922(g), which prohibits a convicted felon from possessing or receiving a firearm. There are several types of evidence that can be used to demonstrate a prior felony conviction, including: 1. Court Records: Court records are public documents that can be accessed to determine if a defendant was previously convicted of a felony. These records are typically the most reliable source of evidence for proving a prior conviction. 2. Police Reports: Police reports may contain information about prior convictions, although this information may not always be accurate. 3. Witness Testimony: Witnesses may be able to testify that the defendant was previously convicted of a felony. This type of evidence is not as reliable as court records, but it may be used to corroborate other evidence. 4. Expert Testimony: An expert witness may be able to provide expert testimony about the defendant's criminal history. This type of evidence can be helpful in proving a prior conviction, but it is not as reliable as court records. 5. DNA Evidence: DNA evidence may be used to prove that the defendant is the same person who was previously convicted of a felony. This type of evidence is usually reliable, but it requires specialized testing and analysis.