Possible Clues:

• Risk incurring a trial, arranged by sergeant-major in one of these?
• Bars marshal we hear from trying for the army
• Reportedly woos officer from private tribunals, perhaps
• Bars said officer from tribunals
• They're trying to be military
• How trying they are for the forces
• How trying for the military!
• Legal institutions risk causing alarmist panic
• They're trying to be in the army
• Cultivates source of Latin epigrams where soldiers stand trial