Police and security guards searched everyone at the door before allowing journalists and those attending other cases to enter.
Only SABC television cameras were allowed inside.
A security guard said only the public broadcaster had applied to film proceedings. Other cameramen had to wait outside the courtroom.
Radovan Krejcir and his co-accused are in court for alleged conspiracy to kill police colonel Nkosana “Killer” Ximba and forensic investigator Paul O’Sullivan.
Radovan Krejcir’s co-accused are Siboniso Miya, Owen Serero, Zodumo Biyela, ex-crime intelligence Sergeant Nandi Nkosi, Welcome Nkanyiso Mafunda, Siphiwe Memela, and his accountant, Mike Grigorov.
Charges against another accused, Jacob Nare, were dropped.