Police are looking for sketches in connection with blast case

A sheet of paper used for sketching has been found in the place on the explosion that took place on July 4. According to “Bulletin Online”, the police have started examining all term papers and degree thesis, and practice reports in higher educational and trade educations institutions.
There was a serial number on the paper and it turned out that it had been produced by Dobrush paper-mill.

Such paper was used by students for sketching about 4 years ago. The paper-mill has not been producing it since then.