A private security officer described how police pulled Musa Kekana from a Mercedes at gunpoint and identified him at the scene, as the court began hearing whether that arrest was lawful and what may be used against him.

The state's first witness came under tough questioning on Tuesday as the defence challenged his account of the Joe 'Ferrari' Sibanyoni shooting.

The morning of day three of the 'Cat' Matlala trial saw a defence advocate produce photographs of the crime scene he took himself at 6am, with the state objecting that it had been…