Turkey allows use of Kurdish language in court
The right to give testimony in their mother tongue was one of the key demands raised by hundreds of prison inmates who went on a 68-day hunger strike that ended in November.
The new law also overturned a ban on conjugal visits for Kurdish inmates.
Turkey's Islamic-rooted government has boosted cultural and language rights for the country's Kurds since taking power in 2002.
But it has failed to find a long-sought settlement to a three-decade-old Kurdish insurgency in the southeast.