Police have released CCTV footage of two men they would like to trace in connection with an attack on a man on his doorstep with a stun gun.
The force would like to talk to two men described as black, of slim build and in their late 20s, after a 40-year-old man was assaulted at his home in Ventnor Avenue, Stanmore on June 15.
According to police, after opening his door following a knock, two unknown men assaulted the victim with a stun gun.
Subsequently the victim fell to the floor and was repeatedly punched and kicked by the suspects.
The victim's mother was assaulted by the suspects after going to the door to find out what was happening before they fled the scene.
They were last seen running towards Weston Drive.
The 40-year old man was taken to a north London hospital. He has since been discharged after being treated for minor injuries.
His mother was treated by the London Ambulance Service for minor injuries.
Detective Barry Holland said: "As you can see from the harrowing CCTV footage, this was a nasty pre-planned attack which has left the victim and his family terrified to be in their own home, a place where they should feel safe.
"I would urge anyone who recognises these two men, or has information on their whereabouts, to contact Harrow CID as soon as possible. The information you provide will be treated in strict confidence. Alternatively you can contact Crimestoppers anonymously.
"We are determined to bring those responsible for this shocking unprovoked attack to justice."
Any witnesses or anyone with information should contact Harrow CID on 0208 733 3445, or police via 101 or via Twitter @MetCC.
To give information anonymously call Crimestoppers on 0800 555 111 or visit crimestoppers-uk.org.
A 23-year-old man was arrested near to the scene on June 15. It was established he was not involved and he was released with no further action.
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