Glavas, was granted transfer to the prison in Mostar because he feared for his security, officials at the Bosnian Justice Ministry confirmed to Hina on Tuesday.
"Justice Minister (Barisa Colak) has granted Glavas's transfer to the prison in Mostar at the request of the head of the Zenica prison," ministry spokeswoman Marina Bakic said.
Bakic said Glavas's fear was due to the fact that inmates at the Zenica prison were people convicted of the gravest types of crime.
Glavas has yet to serve six years in jail.
The head of the Mostar penitentiary confirmed on Tuesday evening that Glavas had been admitted to that prison earlier in the day.
Even though the prison in Mostar has a milder regime than the one in Zenica, Glavas is expected to be detained in a special, closed prison unit for convicts sentenced for the more serious types of crime.
After the State Court of Bosnia and Herzegovina in December 2010 made a final ruling in Glavas's case, upholding the guilty verdict of a Croatian court, Glavas started serving his sentence in Zenica.
In May 2009 he was found guilty of war crimes in Osijek in 1991 and sentenced to eight years in prison. He escaped to Bosnia and Herzegovina, but thanks to a Croatian-Bosnian agreement his verdict was confirmed and he was sent to prison to serve his term.