The trial of Ibrahim Halawa is expected to finally hear the case for the Dubliner's defence today in Cairo.
The 21-year-old's appeared in court on nearly 30 occasions during his mass trial with over 400 others.
Ibrahim's spent nearly four years behind bars in Egypt, following his arrest at a protest in 2013.
Amnesty International said his detention and trial are unlawful.
The Minister for Foreign Affairs has said he believes the trial process is now nearing a conclusion.