Two diminutive bandsmen appear to have their hands full with a formidable-looking adult prisoner. Both lads carry walking out sticks hilted like musician's swords. While their regimental shoulder titles cannot be read, the photographer's stamp on the bottom of the card gives us a hint.
Between 1881 and 1902 the Sherwood Foresters were officially styled the Derbyshire Regiment (Sherwood Foresters). The curved brass regimental shoulder titles simply reading "Derby". The regiment's uniform facing colors was white during that same time period.
Given that the closest thing to an address on the card is the name of a regiment (the card's back is a generic design) it is possible that E. Bentley was actually a serving soldier in the regiment.
E. Bentley the Sherwood Foresters - Photographer