From si.com / Updated April 7th, 2011
The 12 jurors will deliberate as long as it takes all 12 to agree, on each count, that Bonds is guilty or not guilty. Their deliberation could take minutes, days or weeks. If only one juror is unconvinced of Bonds' guilt on a count, the jury will not convict Bonds on that count. Jurors also enjoy flexibility in their deliberation schedule; they will choose their own hours for deliberation and, with Judge Illston's permission, can even deliberate after hours or on the weekend.
If jurors have questions during their deliberation, they can ask Judge Illston, with attorneys for both sides provided an opportunity to hear any questions.
What happens if the jury can't make a decision?If the jurors cannot come to a unanimous verdict on each count, they would inform Judge Illston that they are deadlocked. In that circumstance, she would likely instruct the jurors to reconvene and for the dissenting jurors to carefully consider why the other jurors feel the way they do.
At the same time, Judge Illston would caution that jurors should not to feel pressured to change their mind simply to gain unanimity. She would also inform the jurors that if they fail to reach a unanimous decision, there would be "hung jury" and thus a mistrial. Bonds would be free should a mistrial arise, but, at the discretion of the government, could be retried at a later date.
Read more:
http://sportsillustrated.cnn.com/2011/writers/michael_mccann/04/06/bonds-trial-analysis/index.html#ixzz1JM4f3FdX