A paramilitary , mounted infantry force , the BSACP initially boasted 650 men .
BSACP proved so expensive to maintain that BSACP was reduced to only 40 in 1892 .
A paramilitary , mounted infantry force , the BSACP initially boasted 650 men , but it proved so expensive to maintain that it was reduced to only 40 in 1892 .