Koga was an Aikido student of Koichi Tohei and went on to develop a system based on Aikido principles that was practical for use in law enforcement.

Contents include:

• Recommended baton specifications
• The lawman behind the baton
• Koga method terminologoy
• Koga method handgrips
• Balance
• Target areas
• General rules
• Warm up exercises
• Six basic baton techniques
• Multiple assailants
• Defenses against strangles
• Defenses agains baton grabs
• The armed assailant
• Kendo style practice
• Use of the baton for riot control
• Basic military formations
• New formation
• Basics of crowd control
• Composition of riot formations
• Longer baton