As reported by Censor.NET, he said this to Interfax-Ukraine.
Pifer said on Thursday he would support the new sanctions if they were clearly separated from existing ones, introduced over the situation in Ukraine.
The political expert said he would wait and see what happens after the court delivers its verdict. Pifer added he had no doubts that it would be prosecutive.
Pifer noted it is important that the new sanctions are separated from existing ones, so that Russia clearly understands the conditions under which they would be lifted. If the sanctions are mixed, former U.S. ambassador to Ukraine said, they would not work.