Church Committee "Staff Reports"?

[Gerry Down]

In studying the Church Committee reports with respect to the JFK assassination, i have realized that Church Committee published items consisted of the following:

• Report Book 1
• Report Book 2
• Report Book 3
• Report Book 4
• Report Book 5 (This is the book relating to the JFK assassination)
• Report Book 6
• Hearings Book 1
• Hearings Book 2
• Hearings Book 3
• Hearings Book 4
• Hearings Book 5
• Hearings Book 6
• Hearings Book 7

However i then came across what is called a "staff report". Does anyone know what these "staff reports" are? I have never heard them being mentioned as being part of the final published reports and hearings by the Church Committee.