I have enough experience of the Swedish legal system to know its poor treatment of suspects marks them out as guilty
The 
Julian Assange case has sparked international criticism of the Swedish legal system.  Many Swedish citizens view this criticism as an attack on their country,  and rally to the defence of their legal system. But it is about time  that someone with experience of Swedish procedural law tells it like it  is: Sweden routinely imposes severe restrictions on suspects held on  remand. Pre-trial, suspects are often held in detention, or even in  isolation. This treatment is unnecessary and humiliating and thwarts the  defendant's ability to prepare their case.
Detaining and  isolating a suspect is appropriate where the crime is sufficiently grave  and the indication of guilt clear. Treating 
Anders Breivik in this way is the right thing to do, for instance.
The  allegations against Assange, in contrast, are not nearly so serious,  but a case of "he said, she said". Let us also not forget that Assange  has not been charged with any crime, and that the allegations against  him were at first dismissed by a Swedish prosecutor.
In August  2010, Assange was interviewed by the police for the first time, then  released. A month later, the prosecutor requested an additional police  interrogation be held, insisting this time that it be done with Assange  behind bars. She called for Assange's arrest, issued a European arrest  warrant and ordered that he be deported from the UK. Stockholm district  court and the Svea court of appeal upheld her request and arrested  Assange in absentia.
Neither Assange nor I can understand the  motivation. Why couldn't the second police interview be conducted with  Assange at liberty? Assange is not a Swedish citizen. He does not reside  in Sweden. His work has worldwide impact and he must be able to travel  freely to accomplish this. He would happily have presented himself for  interrogation and, had the case gone to trial, willingly returned to  Sweden to face charges. All this could have been done while he remained  at liberty. Had Sweden handled the case in this way, the issue would  have been resolved a long time ago.
Instead, Sweden insists on  Assange's forcible removal to Sweden. Once there, he will immediately be  seized by police and put in jail. He will be taken to the detention  hearing in handcuffs, and will almost certainly be detained. He will  remain in custody for the duration of the proceedings. This is  unnecessary. The prosecutor is at liberty to withdraw the arrest warrant  and lift the detention order, and a hearing in Sweden could be arranged  very quickly. The prosecutor could also arrange a hearing in the UK or  at the Swedish embassy in London.
This treatment is degrading. No  one should be treated as guilty until proven innocent. There has been no  trial, let alone conviction. Assange has not even been charged with any  crime. And the situation makes it difficult for him to prepare his  defence. If a defendant is placed in isolation they are allowed contact  only with their defence lawyer. The prosecutor and complainants,  however, can confer at length with witnesses and work out their  strategies. Is there any acceptable reason why one of the parties be  deprived of that opportunity?
Sweden has been criticised for its overuse of detention and isolation – and not only by Assange and his supporters. The 
UN committee against torture in 2008 strongly criticised conditions in Sweden's remand prisons, and  Swedish courts, for the fact that prison restrictions, such as  isolation, are imposed on 42% of detained suspects.
The chief  prosecutor has said that Assange will not be held in isolation. However,  even without that being imposed, prison restrictions have become much  harsher and more widespread in recent years. In reality the rules in the  remand prisons make it impossible for a suspect to have proper contact  with the outside world: there are not enough landline telephones, mobile  phones are banned, letters are often censored, and to meet people you  have to fill in application forms that can take weeks to process.
The  treatment that the Swedish legal system has inflicted, and would be  likely to inflict on Assange would mark him out as guilty and prevent  him from preparing a proper defence and, for that reason, having a fair  trial.