Kenya’s Deputy President William Ruto looked calm and confident as he appeared at the International Criminal Court in The Hague, to try to dismiss the case against him.
Mr Ruto is accused of committing crimes against humanity during post-election violence in 2007 and 2008.
Prosecutors told the court how meetings in which people received military training were held at Mr Ruto’s home one month before the elections.
The alleged training camp featured target practice, as well as lessons in how to set homes on fire and how to conceal their identity by wearing white face paint.
Prosecutors also argued that fuelling stations were set up for attackers, who were given intelligence about the addresses of people belonging to the Kikuyu ethnic group.
They are hoping to demonstrate that these were systematic, planned attacks which Mr Ruto organised and coordinated.
His defence says there is insufficient evidence against him and has called for the case to be thrown out.
To date no-one has been held accountable for what was described in court as the most serious violence in Kenya’s history.
The case is continuing.