Prosecutors have challenged two of Oscar Pistorius' key claims about the night he shot and killed his girlfriend Reeva Steenkamp.
Investigating officer Hilton Botha said a witness saw lights on after the shooting - despite the Paralympian earlier claiming he was too frightened to switch on the light, fearing intruders were inside his home.
A statement on behalf of the 26-year-old athlete - which was read out in court on Tuesday - also said he was not wearing his prosthetic legs at the time and felt vulnerable.
But Mr Botha said the trajectory of the shots fired through the bathroom door was downward, suggesting Pistorius had been firing from a standing position and must have a been wearing the limbs.
The court was also told that "non-stop shouting" was heard coming from Pistorius' home before Miss Steenkamp was shot dead.
Prosecutor Gerrie Nel said a witness heard the shouting between 2am and 3am.