The Home Office, in conjunction with the Association of Chief Police Officers (ACPO) has been undertaking a review of CCTV this year, and has been assessing how it may be used more effectively in reducing and detecting crime. The review's findings are expected to be known within the next few weeks and the strategy will reflect discussions with the police and other stakeholders, and will consider the current and future technologies that may be used in conjunction with CCTV.
The Home Office is not aware of any research commissioned, or evaluation of the use of high-powered microphones on CCTV cameras at the 2012 Olympics.
Any technology used with CCTV cameras will have to comply with current legislation before it could be used operationally. This includes a requirement to observe the Information Commissioner's code of practice on the use of CCTV.