http://www.legislation.gov.uk/ukpga/2018/12/section/65/enactedData Protection Act 2018enKing's Printer of Acts of Parliament2024-03-26 PART 3Law enforcement processingCHAPTER 4Controller and processorGeneral obligationsPrior consultation with the Commissioner 65 1 This section applies where a controller intends to create a filing system and process personal data forming part of it. 2 The controller must consult the Commissioner prior to the processing if a data protection impact assessment prepared under section 64 indicates that the processing of the data would result in a high risk to the rights and freedoms of individuals (in the absence of measures to mitigate the risk). 3 Where the controller is required to consult the Commissioner under subsection (2), the controller must give the Commissioner— a the data protection impact assessment prepared under section 64, and b any other information requested by the Commissioner to enable the Commissioner to make an assessment of the compliance of the processing with the requirements of this Part. 4 Where the Commissioner is of the opinion that the intended processing referred to in subsection (1) would infringe any provision of this Part, the Commissioner must provide written advice to the controller and, where the controller is using a processor, to the processor. 5 The written advice must be provided before the end of the period of 6 weeks beginning with receipt of the request for consultation by the controller or the processor. 6 The Commissioner may extend the period of 6 weeks by a further period of 1 month, taking into account the complexity of the intended processing. 7 If the Commissioner extends the period of 6 weeks, the Commissioner must— a inform the controller and, where applicable, the processor of any such extension before the end of the period of 1 month beginning with receipt of the request for consultation, and b provide reasons for the delay.