They need to believe that judges are governed by something bigger than the interests of the parties that appointed them; that prosecutions begin and end because of evidence, not influence; and that the officials who enforce laws obey those laws themselves.
Overall the review identified the thinness of the evidence base in terms of the quantity of studies and their location at the lower end of the evidence scale.
At the end of his evidence this afternoon he said it had never been his meaning.
At the end of his evidence, Greaves asked if he could say a few words.
At the end of their evidence, every witness is asked whether there is anything they would like to add about the death of Kelly.
But, just like a jury, the judge Mr Justice Treacy chose to retire to consider his verdict at the end of the evidence.
Weeks after Ansar was forced from its territory by American Special Forces soldiers and Kurdish fighters at the end of March, evidence gathered from its bases provides a detailed look at the operations of that band of Islamic fighters.
Whittingdale's committee has just come to the end of hearing evidence from senior industry executives and observers, including BBC director general Tony Hall and new BBC Trust chair Rona Fairhead, about the future of the corporation.
The physical assault on Murdoch came near the end of the evidence session, prompting gasps as his wife, Wendi Deng, leaped up to hit the assailant, Jonathan May-Bowles, a participant in UK Uncut events.
Naderi offered his prayers to Dhu's family at the end of his evidence, saying: "I wish I was able to pick up any abnormal signs that may have made a difference".
