Data Protection Impact Assessments

Where data processing is high risk, rely on our data protection specialists to conduct a thorough impact assessment to keep your business compliant.

If you are processing data that is likely to result in a high risk to individuals you need to perform a data protection impact assessment (DPIA). We also recommend doing a DPIA ahead of any big project that involves processing personal data in any way.

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Experts in data protection & privacy law

In addition to assisting with data protection impact assessments, our team can assist you across all areas of data protection & privacy law, including:

Effective impact assessments to reduce data processing risks

DPIAs are all about assessing risk. In particular you need to ask: could the way you process data cause harm – either to individuals or to society as a whole? We can guide you through the DPIA process. In particular if you identify a high risk of harm that requires notifying the Information Commissioner (the ICO) our data protection solicitors can liaise with the regulator on your behalf. Our data protection impact assessments cover:

GDPR training

To ensure relevant staff understand the importance of DPIAs and when one might be necessary.

Provision of data protection impact assessment guidelines

Documenting the risk

To individuals following consultation with your data protection officer and other staff.

Compiling the DPIA

Describing the nature and context of your processing and ensuring full GDPR compliance.

Considering modifications to your processing methods to mitigate identified risks.

Reporting your intended processing project to the ICO if a high level of risk is identified.

Providing advice, where necessary on whether a DPIA is required, usually where processing is likely to result in a high risk to individuals.

This might be where you intend to carry out systematic monitoring or profiling or you are considering the processing of children’s data.

Responding to any decision by the ICO, that prevents you from processing the data.

Benefits of data protection impact assessments under the GDPR

Increased awareness of data processing

DPIAs encourage employees to think about the implications of their data processing activities, and in particular the risk of harm to individuals their work may cause.

Builds trust and confidence in your business

You don’t have to publish a completed impact assessment. However releasing the documentation – for example on your website – is a clear signal that you take data security seriously and will increase consumer trust.

Reduces risk

The data protection impact assessment procedure is designed to reduce the risk of harm to individuals. But a properly considered DPIA can also provide your business with compliance and financial benefits by reducing the risk of serious data breaches and regulatory sanctions.

Data protection impact assessment checklist – the essential

Remember that an impact assessment is a compliance tool designed to identify and reduce the risks involved in a particular project you intend to carry out. A properly considered and completed DPIA demonstrates that you have taken the necessary steps to avoid harming individuals through your data processing. You should:

Who we help: Businesses carrying out high volume data processing

A data protection impact assessment form is only required when your data processing is likely to result in a high risk to the rights and freedoms of individuals. And it is only if you can’t mitigate the risks that you need to consult with the ICO prior to carrying out the processing. At Harper James Solicitors, we have the expertise to identify risk and advise on mitigation. We are familiar with how the regulator approaches high risk processing and can liaise with officials there when your DPIA identifies a high level of risk that can’t be reduced.


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Our solicitor at Harper James, Sarah, was really effective with the time over the phone and used the time to provide us with direct advice - no faff and her advice really helped us to do the next steps. She followed up quickly and delivered the document really quickly too, it is fantastic to have lawyers that are reliable and are responsive too. I am very happy with our experience with Harper James!

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Why choose Harper James Solicitors?

If you are embarking on large scale data processing and you are concerned about the risk to individuals get in touch with us. We offer general advice on the occasions when a DPIA is essential as well as on those instances where one may be desirable. We can also assist with the DPIA itself, advising you on the steps you need to take, who you need to involve and the issues you need to raise to ensure your DPIA is effective. We have a specialist team of solicitors, regularly engaged in training and advising commercial clients and their staff on all aspects of GDPR compliance.

As a fully integrated commercial law firm we can also provide you with support across a range of services to help your business go from strength to strength. With a deep understanding of the inner workings of growing businesses, we can provide you with all the legal support you will need to thrive.

Find out more about the team here:

Quality and Compliance Director & Commercial Partner

As a previous partner at DLA Piper, Sarah comes with a rich pedigree in providing expert commercial services for her clients.

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Partner - Commercial

Before joining Harper James, Rob worked for Santander bank as an IP/brand management lawyer and also at Shakespeare Martineau.

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Senior Solicitor - Data Protection & Privacy

Lillian, an experienced data protection solicitor, supports C-suites, GCs, and Privacy Offices with domestic and international data protection needs. She specialises in UK compliance, AI governance, and was Group Compliance Officer at a plc-listed company.

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Senior Solicitor - Commercial Technology & Data Protection

David is a senior commercial solicitor, specialising in technology and data protection. He joins us having worked as in-house counsel for the BBC and OUP.

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Senior Solicitor - Data Protection & Privacy

Becky is a highly knowledgeable commercial lawyer, specialising in Data Protection and Privacy Law. She can add value to a business by drawing on nearly 20 years of in-house experience.

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Senior Solicitor - Data Protection

Trevor’s experience includes managing complex data subject access requests, data breach response, privacy programme development, due diligence on corporate M&A transactions, and all manner of domestic and international data processing and sharing agreements.

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Examples of our expertise

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Thoughts and opinions

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