Metropolitan Police Commissioner Bernard Hogan-Howe told LBC radio today police are reviewing options because of the resources used to keep tabs on Assange.
He said the round-the-clock guard is "sucking our resources."
Assange has taken refuge at the embassy since June 2012 to avoid extradition to Sweden for questioning about possible sexual assaults. He denies any wrongdoing. He says he fears being sent to the United States to face trial for his WikiLeaks work.
