What did an APM do ?

[SteveMarsdin]

Good morning,

I'm reading a private diary of a 2ndLt in the East Yorkshire Regiment. In September 1916 they are in the Somme (part of 50th Division). He writes daily about visiting areas with the APM, often supervising traffic control, sometimes checking prisoners.

I'm ignorant on these roles but I assume APM is Assistant Provost Marshal, which I think is a divisional post; would an APM draw his immediate staff and/or operate with junior officers drawn from regiments within the division ? would they be responsible for traffic control ?

See http://1914-1918.invisionzone.com/forums/index.php?showtopic=200748&hl=

[Stoppage Drill]

A divisional APM the officer who had responsibility to the GOC for matters of discipline, military police organisation, traffic control etc. He would be part of the Deputy Assistant Adjutant General's branch.

I believe that APM's were usually responsible for the organisation of executions and signed off the final brief entry to a file "Sentence carried out . . . . " etc.