FACTBOX:What happens now with Karadzic?

(Reuters) - Radovan Karadzic, twice indicted by The Hague for orchestrating genocide during the 1992-95 Bosnia war, was arrested on Monday and is now held in a Belgrade prison.

The following factbox details what will happen next as he goes through extradition and trial:

- His lawyers have until Friday to appeal against his extradition to The Hague. They say they will only do so very close to the deadline, to extend his stay in Belgrade as long as possible and allow him to spend more time with his family.

- Once the appeal is launched, the Serbian authorities have up to three days to rule on it. This means his extradition could take place over the weekend at the earliest or, at the latest, on Monday or Tuesday.

- Like previous war crime suspects before him, Karadzic is likely to be taken to The Netherlands on a Serbian government plane, and straight to the U.N. detention unit in Scheveningen, on the blustery North Sea coast.

- He will first have to go through an medical examination and answer questions about his plans for legal representation.

- He will get a single cell with a bathroom and an office corner. Because he wants to conduct his own defense, he is likely to be allowed use of a separate office with a computer and internet access. The late autocrat Slobodan Milosevic received similar treatment after waiving the right to a lawyer.

- There are currently 37 detainees in custody indicted for their role in the wars in Croatia, Bosnia and Kosovo. Released inmates say that the ethnic rivalries that drove them to fratricide have faded within the walls of the prison, and most indictees socialize, cook together, play sport and board games and celebrate religious holidays.

- His first appearance in court will be scheduled within a few days of his arrival. Usually that is when the indictment is read. Karadzic can ask that only the charges, effectively a shorter summary of the indictment, are read, or that the indictment is not read at all.

- He will be asked to enter a plea. If he refuses to enter a plea, proceedings will be adjourned and he will have 30 days to consider before he is again asked to enter a plea. If he refuses to plea then, a plea of 'not guilty' will be entered for him.

- It is hard to predict how long his trial would last. Some cases conclude within a few months, but most take between one and two years. Milosevic's trial -- possibly the tribunal's largest and most complex case -- had gone into its fifth year when he died in custody in March 2006.

(Writing by Ellie Tzortzi; Editing by Jon Boyle)