On Wednesday her legal team had planned to finalise the draft of their 23-page closing argument, but authorities denied their request to visit her in a special guest house inside the jail.
"This shows that the judicial system in the country is very weak," ''said Nyan Win, one of Aung San Suu Kyi's defence lawyers as well as spokesman for her party.
"We need to see our client to finalise the draft, and it was very bad that the right has been denied."
The trial has drawn condemnation from the international community and opposition supporters, who worry the ruling military has found an excuse to keep her detained through elections planned for next year.
Aung San Suu Kyi's legal team not contested the basic facts of the case, but they have said argued that the charges she faces are illegal because the military government charged her under a law that cites a constitution abolished two decades ago.
They have also asserted that the security guards who monitor her home and ensure that she remains inside her compound should also be held responsible for any intrusion on her property.
She is widely expected to be found guilty when the verdict is delivered, expected sometime next month.