REUTERS

Three main channels are used: an "internally displaced person" (used rarely), a "militant deserter" (becomes more popular, in some cases they make up legends) and a "visiting relative," the NGO said.

Read alsoOSCE spots "DPR" militants with new shoulder patches"Sometimes there is a variation – a 'suffered' civil servant, mostly from the law enforcement, judicial system or local officials of district levels," it said.