UNKNOWN
As I understand it, and subsequently after the arrest of Johnson when a bit of controversy arose, it transpired that many of the serving policemen at Guguletu were aware of this structure.
 I had not, you know it was the first time that I went there and these ladies took us there.  That is why it was still in the early morning hours that they went to go and point it out to us.
 But this was what was commonly referred to as the sort of Johnson's police station.