Dangerous dogs are being bred by young men as business assets in drug deals, debt collection and for their gang image, according to research published today.
More young men were using aggressive dogs, such as Pitbulls, as a "commodity" for security and making money in gangs, the study found.
Dr Simon Harding, of Middlesex University London, who is behind the research, said: "For many young people, dogs are increasingly viewed as a commodity which can be traded up or down like a mobile phone.
More top news
The installation is the first in London by acclaimed British underwater sculptor Jason deCaires Taylor, part of the Thames festival.
Services through Kempton Park were suspended over the weekend due to an "obstruction on the line".
A leading sexual health clinic has apologised after mistakenly sharing the HIV positive status of hundreds of patients in an email.