UNITED NATIONS — Far from wishing the world would forget the name Sergei V. Skripal, Russia seems to be emphasizing it.

Exactly one year ago, Mr. Skripal, a former Russian spy, was found twitching beside his unconscious daughter on a park bench in Salisbury, England, both poisoned, British authorities later said, with a potent nerve agent administered by two officers from Russia’s military intelligence agency. In response, Britain and its allies expelled more than 150 Russian diplomats and imposed punishing economic sanctions, pushing the Kremlin further into isolation from the West.

Rather than ignoring the anniversary, however, Russia punctuated the occasion on Monday with an hourlong news conference at the United Nations and a 52-page report rehashing the episode in detail, amplified by extensive coverage on its English-language government channel, RT.

Russian officials also have tried to turn the tables, accusing Britain of violating international law by refusing to provide Russian consular officials access to the Skripals, who survived and whose whereabouts has not been made public.