Example of Norway
When making border treaties with Russia, then first find out, on whose side are the negotiators
Delimitation agreement 
Negotiations on the outside marine border were initiated in 1970. Norway claimed, in accordance with the United Nations Convention on the Law of the Sea Article 15 and the Convention on the High Seas, that the border should follow the equidistance principle, the border being defined by midpoints between the nearest land area or islands, as is normal practice internationally. The Soviet Union claimed, based on a decision by Joseph Stalin from 1926, which was not recognized by any other country than the Soviet Union, that a "sector principle" should apply, such that the border should follow meridian lines. Most of the disputed area was within what would normally be considered Norwegian according to the relevant international treaties. In 1975 the two countries agreed upon a moratorium prohibiting exploration for oil and gas in the disputed area.
In 1978 a temporary agreement regulating fishery in a 60,000 km2 (23,000 sq mi) zone, named the Grey Zone in some documents from the same time, was signed, which has since been renewed annually.
From the Norwegian side, the agreement was negotiated by Labour Party politician Jens Evensen and his protégé Arne Treholt, who was later exposed as a Soviet spy and convicted of high treason. The agreement was highly controversial in Norway. Many Norwegians believed that Evensen and Treholt gave too many concessions to the Soviet Union, and that they were motivated by Soviet sympathies. The agreement caused consternation in parliament and government, and Evensen had difficulty receiving acceptance from his own government, where many held the opinion that he had exceeded his authority. The opposition criticized him for having accepted less than Norway's rightful claim.
Treholt, who was then serving a twenty-year sentence, admitted in 1990 that he had acted as an informer for the Soviet negotiators. The arrest and conviction of Treholt in 1984 and 1985 had a devastating effect on Evensen, who withdrew completely from public life in Norway. In 1989, Evensen compared Treholt to Vidkun Quisling.