"Alexei Navalny's ideas and hopes for his country come before his own personal ambitions and safety," Red Notice author Bill Browder told Euronews.
Police raided the home of activist Lyubov Sobol on Christmas day after she knocked at the door of an alleged FSB agent who Alexei Navalny says took part in the plot to poison him.
He made the claim during his annual marathon press conference on Thursday.
Russian opposition leader Alexei Navalny says EU measures against Russian officials will only be taken seriously when they target oligarchs with close links to the Kremlin
The bill would mean presidents who were no longer in office and members of their family "cannot be brought to criminal or administrative responsibility, as well as detained, arrested, subjected to a search, interrogation, or body search."
While Alexei Navalny remains in Germany recovering from a near-fatal poisoning in August, Russian officials search his offices in Moscow.
The Russian president said he asked the country's Prosecutor General to immediately allow opposition figure Alexei Navalny to be moved to Germany for urgent treatment.
The opposition figure was in hospital in Berlin being treated for Novichok poisoning when Merkel came to the hospital for "a private meeting".
In video posted on Instagram, Alexei Navalny, who was poisoned with Novichok, can be seen up and about and walking down stairs in the Berlin hospital where he is being treated.