Syrian opposition leaders (outside Syria) have called for an international investigation into what happened in the Syrian prison.
After an unknown number of detainees have been killed (supposedly 25) in the Sednaya prison in Syria, the opposition (outside Syria) decided that what happened is an international issue and needs to be solved in that manner. Lets not forget who makes up the opposition outside Syria, which includes the Ikhwan, who in their early days terrorized the people of Syria by planting car bombs around the capital Damascus, and Abdulhalem Khadam, who is as bad as any "mas'ul" (any person who has a member of their family in the government or the security services) as he and his sons managed to suck the blood out of Syria and Lebanon as much as any other "mas'ul". So I don't know why we should listen to them.
Anyways what happened in Syria is an internal issue, those prison guards who have been involved in the killing of the detainees should be put on trial, jail conditions have to be improved, and the entire judicial system has to be revised in Syria. As well as training the prison guards to carry out their duties properly. All of those very good suggestions (i must admit that was quite good eh? )can be internally solved, I don't see how the UN can help or the arab league, as if other arab countries have better jail conditions and treat their prisoners in a better way.
So a message to the opposition leaders outside Syria: Shatap!