![City of London Police Commander Ian Dyson arrives to read a statement outside Wood Street Police Station in London September 15, 2011. Swiss bank UBS said a rogue trader had lost $2 City of London Police Commander Ian Dyson arrives to read a statement outside Wood Street Police Station in London September 15, 2011. Swiss bank UBS said a rogue trader had lost $2](https://c8.alamy.com/comp/2CX72A2/city-of-london-police-commander-ian-dyson-arrives-to-read-a-statement-outside-wood-street-police-station-in-london-september-15-2011-swiss-bank-ubs-said-a-rogue-trader-had-lost-2-billion-in-unauthorised-dealing-and-police-in-london-arrested-a-man-in-connection-with-the-case-reutersluke-macgregor-britain-tags-business-crime-law-2CX72A2.jpg)
City of London Police Commander Ian Dyson arrives to read a statement outside Wood Street Police Station in London September 15, 2011. Swiss bank UBS said a rogue trader had lost $2
![Prime Minister Boris Johnson (left) and Commissioner of the City of London Police, Ian Dyson (right) go under the cordon at the scene of yesterday's attack on London Bridge, after a terrorist Prime Minister Boris Johnson (left) and Commissioner of the City of London Police, Ian Dyson (right) go under the cordon at the scene of yesterday's attack on London Bridge, after a terrorist](https://c8.alamy.com/comp/2AC2FFD/prime-minister-boris-johnson-left-and-commissioner-of-the-city-of-london-police-ian-dyson-right-go-under-the-cordon-at-the-scene-of-yesterdays-attack-on-london-bridge-after-a-terrorist-wearing-a-fake-suicide-vest-who-went-on-a-knife-rampage-killing-two-people-was-shot-dead-by-police-2AC2FFD.jpg)
Prime Minister Boris Johnson (left) and Commissioner of the City of London Police, Ian Dyson (right) go under the cordon at the scene of yesterday's attack on London Bridge, after a terrorist
![Prime Minister Boris Johnson and Commissioner of the City of London Police Ian Dyson attend the London Bridge crime scene in central London after a terrorist wearing a fake suicide vest who Prime Minister Boris Johnson and Commissioner of the City of London Police Ian Dyson attend the London Bridge crime scene in central London after a terrorist wearing a fake suicide vest who](https://c8.alamy.com/comp/2AC2E49/prime-minister-boris-johnson-and-commissioner-of-the-city-of-london-police-ian-dyson-attend-the-london-bridge-crime-scene-in-central-london-after-a-terrorist-wearing-a-fake-suicide-vest-who-went-on-a-knife-rampage-killing-two-people-was-shot-dead-by-police-2AC2E49.jpg)
Prime Minister Boris Johnson and Commissioner of the City of London Police Ian Dyson attend the London Bridge crime scene in central London after a terrorist wearing a fake suicide vest who
![City of London Police Commander Ian Dyson reads a statement outside Wood Street Police Station in London September 15, 2011. Swiss bank UBS said a rogue trader had lost $2 billion in City of London Police Commander Ian Dyson reads a statement outside Wood Street Police Station in London September 15, 2011. Swiss bank UBS said a rogue trader had lost $2 billion in](https://c8.alamy.com/comp/2CY4FKT/city-of-london-police-commander-ian-dyson-reads-a-statement-outside-wood-street-police-station-in-london-september-15-2011-swiss-bank-ubs-said-a-rogue-trader-had-lost-2-billion-in-unauthorised-dealing-and-police-in-london-arrested-a-man-in-connection-with-the-case-reutersluke-macgregor-britain-tags-business-crime-law-2CY4FKT.jpg)
City of London Police Commander Ian Dyson reads a statement outside Wood Street Police Station in London September 15, 2011. Swiss bank UBS said a rogue trader had lost $2 billion in
An important message from Commissioner Ian Dyson | United Kingdom | While our officers continue to protect the City it's important you play your part too Please follow UK government guidance and
![Prime Minister Boris Johnson and Commissioner of the City of London Police Ian Dyson attend the London Bridge crime scene in central London after a terrorist wearing a fake suicide vest who Prime Minister Boris Johnson and Commissioner of the City of London Police Ian Dyson attend the London Bridge crime scene in central London after a terrorist wearing a fake suicide vest who](https://c8.alamy.com/comp/2AC2E4X/prime-minister-boris-johnson-and-commissioner-of-the-city-of-london-police-ian-dyson-attend-the-london-bridge-crime-scene-in-central-london-after-a-terrorist-wearing-a-fake-suicide-vest-who-went-on-a-knife-rampage-killing-two-people-was-shot-dead-by-police-2AC2E4X.jpg)
Prime Minister Boris Johnson and Commissioner of the City of London Police Ian Dyson attend the London Bridge crime scene in central London after a terrorist wearing a fake suicide vest who
![Mayor of London Sadiq Khan and City of London commissioner Ian Dyson visit the scene of a stabbing on London Bridge, in which two people were killed, in London, Britain, November 30, Mayor of London Sadiq Khan and City of London commissioner Ian Dyson visit the scene of a stabbing on London Bridge, in which two people were killed, in London, Britain, November 30,](https://c8.alamy.com/comp/2CHAWPW/mayor-of-london-sadiq-khan-and-city-of-london-commissioner-ian-dyson-visit-the-scene-of-a-stabbing-on-london-bridge-in-which-two-people-were-killed-in-london-britain-november-30-2019-reutersian-walton-2CHAWPW.jpg)