Calvin Goddard

Calvin Goddard is the ballistics expert discussed in 121.极简法医鉴识手册：一切犯罪，皆有痕迹 through the 1929 St. Valentine’s Day Massacre. The episode says Goddard used shell casings and comparison microscopy to distinguish the murder weapons from police-issued firearms, then later connected the weapons to guns found with Al Capone’s associates.

For the wiki, Goddard matters as a concrete figure in Modern Criminal Investigation Formation. He represents the stage where firearm traces, microscopy, laboratory comparison, and expert testimony become part of the institutional answer to suspicion and rumor.

Connections

• Forensic Science / 法证鉴识 - field in which Goddard is used as a historical example.
• Trace Evidence Forensics - shell casings and tool marks as material traces.
• Modern Criminal Investigation Formation - laboratory comparison as institutionalized investigation.
• Evidence Over Testimony - physical comparison can test competing narratives about who fired a weapon.