The official BlackBerry blog has been defaced after its parent RIM said it would co-operate fully with the Home Office and police force following the London riots.

In a blog post, BlackBerry said that it had ‘engaged with the authorities to assist in any way we can' and was working to comply with The Regulation of Investigatory Powers Act and was co-operating fully with the Home Office and UK police forces.

The blog post, which at the time of writing is still live on the BlackBerry website, now features a response from ‘TeaMp0isoN' who said that RIM ‘will not assist the UK police because if you do, innocent members of the public who were at the wrong place at the wrong time and owned a BlackBerry will get charged for no reason at all'.

There have been calls for BlackBerry to turn communication logs over to the police after it was alleged that the BlackBerry Messenger (BBM) service was used to instruct rioters on where to be. One BBM broadcast seen by the Guardian called on ‘everyone from all sides of London' to vandalise shops on Oxford street.

The statement from TeaMp0isoN, said: “The police are looking to arrest as many people as possible to save themselves from embarrassment. If you do assist the police by giving them chat logs, GPS locations, customer information and access to people's BBM you will regret it, we have access to your database which includes your employees information; e.g. addresses, names, phone numbers etc. Now if you assist the police, we will make this information public and pass it onto rioters.

“Do you really want a bunch of angry youths on your employee's doorsteps? Think about it and don't think that the police will protect your employees; the police can't protect themselves let alone protect others. If you make the wrong choice your database will be made public, save yourself the embarrassment and make the right choice. Don't be a puppet.”