but I do think he should be brought to justice for the things he has done.
what laws has he broken
Well that's the great debate see. One argument is that he's broken the constitution with his use of signing statements that change the entire nature of a bill rather than choose to go head to head with the senate and congress with a veto. Yes, signing statements were around long before Bush was in office and have been used by other presidents in the past- but not to nullify or change key parts of a bill... the executive is not supposed to be able to do that. By the time a bill gets to the president's desk it should be either sign the bill or veto it. "Since taking office in 2001, President Bush has issued signing statements on more than 750 new laws, declaring that he has the power to set aside the laws when they conflict with his legal interpretation of the Constitution."- Boston Globe. See, in doing that, the president has become what's called a 'unitary executive'- this essentially nullifies many of the checks and balances in your system, and changes the U.S from a nation of laws to a nation of men. The scary thing is, no one stopped him from doing this, and much as I dislike the democrats I was hoping that they would open impeachment proceedings against Bush when they took congress. Instead they continued to play politics and sit on their hands.
There's many other examples that I believe Bush is guilty for, and should be held accountable- the signing of the military commissions act of 2006, for example. This bill effectively repeals the rights of habeas corpus. What this bill says is that if the U.S government determines you are an 'unlawful enemy combatant' that they can detain you indefinitely, you have no real legal rights, they do not have to inform your family, they do not have to tell you why you are being held or the evidence against you, in the interests of preserving national security of course. Backup you say- "what the heck is an unlawful enemy combatant?!?"- well according to this bill, if the government says you are a terrorist, you are a terrorist. They don't have to take you before a member of the judicial branch and explain the charges against you. Furthermore, the bill makes it so that you will not be tried by the U.S legal system, but by a military tribunal. Who are the members of the tribunal? Military officers appointed by the government. This law is one of the most damaging pieces of legislation passed by the U.S government, and Bush, the members of congress and the senate that voted for it should be prosecuted (in my humble opinion)