Mr Navalny, leader of the Russia of the Future opposition party, died on February 16 in a Russian prison in the Arctic Circle after being jailed on what his allies said were trumped up charges.
Charlie Rowley was left partly paralysed by the deadly Russian Novichok attacks in Salisbury in 2018 - now he has a warning for the widow of Russian opposition figure Alexei Navalny
Charlie Rowley, a Salisbury Novichok poisonings survivor, has issued the warning to Yulia Navalnaya. His partner Dawn Sturgess was killed by the poison in 2018.