Is it a breach of my human rights for the police to insist that I give details of a driver who has been caught speeding?

No. The law requiring registered keepers to provide details of who was driving a car has been challenged. This was on the basis that it breached a persons right to a fair trial since it infringes a person right not to incriminate themselves, especially where the information has been requested without the registered keeper being cautioned. However, the European Courts have recently decided the case of O’Halloran & Francis v UK which confirmed that the requirements to disclose the identity of the driver did not amount to a breach of an individuals human rights.