These gateways could be secured by large brass gates, so even if one was able to pass beyond the gates at the wall there was no access into the city unless the brass gates were open.
Malango haya yangefungwa imara kwa milango mikubwa ya shaba, kwa hiyo hata kama mtu angeweza kupita ng ambo ya malango kwenye kuta hakukuwepo uwezekano wa kuingia mjini mpaka malango ya shaba yafunguliwe.