Alexander Litvinenko

Career and activism

Litvinenko served in Soviet and post‑Soviet security agencies and rose through the ranks in the 1990s. In the early 2000s he publicly accused elements within Russian security structures of unlawful actions and co‑authored investigative works that challenged official accounts of major events. His allegations and public interviews made him a high‑profile critic and helped secure his asylum in the United Kingdom, where he continued to speak and write about corruption and abuse of power.

Poisoning and death

In November 2006 Litvinenko suddenly fell ill in London and died on 23 November 2006. Medical examination and forensic analysis identified acute radiation syndrome caused by polonium‑210, a rare radioactive substance. Traces of polonium were subsequently found at locations he had visited. British investigators identified two suspects who had met him in London; the Russian authorities denied requests for extradition.

Investigations and rulings

The case prompted a long and high‑profile inquiry in the United Kingdom, which concluded that his death resulted from deliberate poisoning and implicated operatives of Russian state security. In September 2021 the European Court of Human Rights ruled that Russia was responsible for the poisoning. The affair strained UK–Russia relations and raised international concern about the use of radioactive materials as a weapon.

Legacy and significance

Litvinenko's murder remains one of the most notorious politically charged poisonings of the 21st century. It has been cited in discussions about state‑linked reprisals, transnational security, and the safety of dissidents abroad. His case also prompted changes in how investigators detect and trace radioactive contaminants in urban environments.

Key facts

• Birth: reported in 1962 (some sources cite differing dates)
• Former security officer who became a critic and author
• Killed in London on 23 November 2006 by polonium‑210 poisoning
• British inquiry and the ECHR found state responsibility; extradition requests were not honored

For further reading, contemporary press coverage and official reports from the UK inquiry and international human‑rights tribunals provide detailed timelines and findings. Several books and investigative pieces by journalists and analysts also document his career and the circumstances of his death.

rank details • service records • dissident activity • writings • international ruling