Enhanced Developed Vetting guide for job seekers

Enhanced Developed Vetting (eDV) is the UK’s highest level of security clearance, required for roles involving top secret information. Learn what the process involves, how to prepare, and why it’s essential for high-trust government and private sector positions.

Bristol

23rd April 2026

Ashton Gate Stadium

Find Out More

Manchester

9th July 2026

Manchester Central

Find Out More

Cheltenham

10th September 2026

Cheltenham Racecourse

Find Out More

London

27th October 2026

QEII Centre

Find Out More

Enhanced Developed Vetting (eDV) is the UK’s highest level of security clearance, required for roles involving top secret information. Learn what the process involves, how to prepare and why it’s essential for high-trust government and private sector positions.

Job seekers applying for certain roles will need to undergo government security checks. One of these may be eDV..

What is enhanced Developed Vetting?

Enhanced Developed Vetting (eDV) is required for a very small number of specific roles where an additional level of assurance is needed above standard Developed Vetting (DV).

Those who go through the process and are granted eDV can expect to be working in a role involving highly sensitive assets. This may include unrestricted access to highly confidential assets, including custody of a small quantity of material, entry to areas where these files are stored or working in areas where information may be overheard.

An eDV clearance cannot simply be requested by an individual. Only a small number of approved sponsors can request this level of vetting and they must have an existing prior agreement with United Kingdom Security Vetting (UKSV) and the Cabinet Office.

The clearance is also post-specific. This means your eDV clearance will lapse if you move out of the particular post for which it was granted.

How eDV differs from Developed Vetting (DV)

Although the two security clearance levels are closely related, there are important differences between Developed Vetting and enhanced Developed Vetting.

DV is required for roles involving frequent and uncontrolled access to highly sensitive assets or materials. eDV is reserved for a much smaller number of agreed, specific posts that grants unrestricted access to high-level top secret intelligence information, where the government requires an additional level of assurance above DV.

The enhanced vetting process therefore builds on the extensive checks associated with DV and can involve additional in-depth interviews. Applicants are also required to provide a full list of foreign travel undertaken during the previous ten years. Unlike standard DV, eDV can only be requested by a small number of sponsors with prior agreement from UKSV and the Cabinet Office. 

Both DV and eDV are tied to the specific post, rather than simply remaining with the clearance holder when they move out of that role.

Why eDV is important for security roles

It’s important to national security that individuals who require access to highly sensitive information are vetted thoroughly. These materials are often used in critical roles, but safeguarding this information means only those assessed as suitable to hold the required level of clearance can have access to it.

The enhanced vetting process is designed to identify potential security risks or vulnerabilities and determine whether these can be appropriately managed. This is why eDV goes further than standard DV checks for the small number of posts where additional assurance is necessary.

Being prepared to undergo intense scrutiny to obtain eDV for certain security cleared roles can make you eligible for highly sensitive positions. Areas including your criminal record, finances, family circumstances, relationships, travel and internet use may all be examined as part of the process.

What does the eDV process entail?

The length of the eDV clearance process varies from person to person. Multiple checks involving different agencies may be required, which means some applications can take longer than others.

This involves pre-employment checks, a detailed security questionnaire, background investigations, interviews and a final decision. Here’s how the process typically goes for security vetting:

Pre-screening

Before the in-depth investigation begins, your employer will usually perform pre-employment checks. These can include the Baseline Personnel Security Standard, which covers:

  • Identity
  • Nationality and immigration status
  • Employment history
  • Unspent criminal records

These initial checks establish basic information about an applicant before the enhanced vetting process begins.

In-depth background checks and questionnaire

Once the initial stage has been completed, the application is sent to UKSV for a thorough investigation.

The major components of an eDV security clearance include:

  • Departmental records checks
  • A detailed security questionnaire
  • Criminal record checks
  • A credit reference check
  • A Security Service check
  • A financial investigation
  • Checks that may extend to third parties included on your security questionnaire

Your security questionnaire will require detailed information about your circumstances, including your finances and internet use. The financial investigation can consider your assets, liabilities, income and expenditure and may also take into account the financial position you share with a spouse or partner.

Applicants should be prepared to provide comprehensive and accurate information. For eDV, this includes a full list of all foreign travel undertaken during the previous ten years. Compiling travel dates and destinations before beginning your application can therefore make it easier to complete this part of the enhanced vetting process accurately.

Providing complete information is important even if you are concerned that something in your history could affect your application. Vetting is intended to assess potential security risks and vulnerabilities in context rather than simply identify whether an applicant has a perfect personal history.

Interviews and personal references

The interview stage of enhanced developed vetting is particularly thorough. eDV can require additional in-depth interviews beyond those associated with DV, reflecting the additional level of assurance required for these highly sensitive posts.

Your individual interview will be conducted by a Vetting Clearance Officer (VCO), who will contact you in advance. Interviews take place face to face at established interview locations and can last several hours, with applicants able to take breaks when needed.

The questions may cover topics such as:

  • Nationality and citizenship
  • Family
  • Employment history
  • Health and wellbeing
  • Friends and associations
  • Alcohol and substance use
  • Travel
  • Sexual history
  • Finance
  • Internet usage
  • Criminality
  • Lifestyle and beliefs

Some of these subjects are highly personal, so applicants should expect the interview to be wide-ranging and potentially intrusive. The purpose is to give the VCO enough information to understand your individual circumstances and identify any potential vulnerabilities or conflicts of interest.

VCOs will also need to speak to suitable referees who can provide information about your personal and professional behaviour. The wider eDV process can additionally include interviews with your supervisor and referees.

Tips for preparing for the process

Security vetting preparation for an eDV clearance involves being organised, open and ready to provide considerable detail about your personal circumstances.

Here are some ways you can prepare:

  • Organise your personal and financial records: Having information about your employment, finances and other relevant circumstances readily available can make completing the security questionnaire easier.
  • Compile your travel history: eDV applicants should start putting together details of all foreign travel during the previous ten years. Check passports, visas, itineraries, booking confirmations or other records if you need help establishing dates and destinations.
  • Maintain transparency: Answer questions accurately and openly rather than assuming something in your history will automatically prevent you from gaining clearance. If you are unsure why something is being asked, you can ask your VCO for clarification.
  • Think about your referees: Suitable referees will be contacted as part of the process, so consider who can provide an informed picture of your personal and professional behaviour.
  • Familiarise yourself with the process: The government’s Demystifying Vetting materials can help you understand what information may be requested and why.
  • Request reasonable adjustments if necessary: Applicants can ask UKSV for reasonable adjustments to remove or reduce barriers they may face during the interview process.

It can also help to remember that the interview is intended to gather information rather than catch you out. UKSV advises applicants to communicate honestly, answer the questions being asked and raise any concerns or need for a break with their VCO.

FAQ