This is from the same friend who suggested you get the Laband Book .
The uniform of the Zululand Police (Nongqayi) at this stage was -
Officer (European) - Blue glengarry, blue tunic, white trousers, blue puttees, boots.
Men - Blue glengarry, blue jersey (with white rank chevrons for NCOs), white trousers, blue puttees. Infantry went bare-foot, men on mounted duties hand ankle-boots and spurs. White haversack over right shoulder, leather M-H bandolier over left. White waist belt with bayonet at left rear, one black ammo pouch on right front waist. M-H rifles
6th Dragoons -
Plain blue frock (tunic) with no braiding or coloured facings. Blue trousers with yellow stripes for ORs, gold for officers. Black riding boots, although some photos suggest blue puttees were worn instead. Helmet dyed with tea, coffee etc. In group photos officers seem to be wearing buff riding breeches rather than regulation trousers and some are wearing cavalry-style braided patrol jackets. There are no photos of Troopers fully equipped that I've found but presumably they would have been wearing the usual dirtied white belts, haversack, water bottle etc.
By 1888 Line infantry regiments were wearing post-1881 frocks (red with universal white facing - collar and cuffs). There are photos of MI detachments in Zululand wearing red coats in the 1880s, but in 1888 most of these seem to have been replaced with blue jerseys. Buff riding breeches, leggings, boots, dyed helmets, M-H bandoliers, haversack, water-bottle. Interestingly one 1884 photo clearly shows an MI detachmeant carrying M-H rifles rather than carbines.
Natal Mounted Police
Uniform still largely as per Anglo-Zulu War.
The RA too seem to have worn jerseys instead of tunic (these being a popular choice for practical campaign wear in SA at the time, since khaki was not issued there at that stage). Otherwise uniform was as per 1879 (helmet, blue trousers with red stripe etc).
Hope this helps .