Query regarding 'whose responsibility is it to investigate and prosecute alleged offences under the Planning Act 2008?'

Thank you for your email of 23 May 2014.
I have looked into your question about whose responsibility it is to investigate and prosecute alleged offences under s58 of the Planning Act 2008.
The advice I have received is that it would be for the police and the Crown Prosecution Service to investigate and to prosecute offences under the Planning Act 2008 (PA 2008). I can confirm that this is not a responsibility of the Planning Inspectorate as the PA 2008 does not confer such powers.
I hope this answers your query.