CIOL Qualifications Level 6 Diploma in Police Interpreting (DPI)

To find out how to prepare for the DPI exam click here.

The CIOL Qualifications Level 6 Diploma in Police Interpreting (DPI) is a professional qualification for those who work, or would like to work, as interpreters for Police forces in England, Wales and Northern Ireland. It is an Ofqual regulated, nationally recognised qualification and the skills are specific to a police interpreter.

The DPI qualifies holders to interpret in a wide range of police and criminal justice contexts. With its focus on the environment and contexts of policing, it provides candidates with evidence of their skills and provides reassurance to both users and providers of police and related services that the quality of interpretation provided by qualified holders of the diploma is of the highest professional standard.

The Diploma in Police Interpreting replaced the Metropolitan Police Test which ran from 1977-2013.

CIOL Qualifications (CIOLQ) supports professional linguists, providing the gold standard for translators and interpreters recognised widely in the UK and around the world, as well as other linguists who may have a different primary role but who use their languages on a regular basis in their professional work.

Holders of the CIOLQ DPI are tested rigorously and in depth to prove they have the language skills, interpreting techniques and the right approach to take on the most demanding assignments. Add CIOL Study Affiliate Membership to that and you have:

  • Membership of the leading professional body for language practitioners
  • Access to online CPD and a community of language professionals and linguists
  • A mentoring programme and an instant job board (Find-a-Linguist)

The DPI qualifies you not just for work but to become a valued participant in a community of like-minded professionals widely respected for their skill, expertise and experience.

In addition, once you have our DPI, applying for full CIOL membership and Chartered Linguist status can set you apart to ensure you get the recognition and reward you deserve.


The following languages have been offered to date, paired with English:

Albanian, Amharic, Arabic, Bengali, Bulgarian, Cantonese, Croatian, Czech, Dari, Dutch, Farsi, French, German, Greek, Gujarati, Hindi, Hungarian, Italian, Japanese, Korean, Kurdish (Sorani), Latvian, Lithuanian, Mandarin, Mongolian, Nepalese, Panjabi (Indian), Panjabi (Pakistani), Pashto, Polish, Portuguese (European), Portuguese (Brazilian), Romanian, Russian, Serbian, Slovak, Somali, Spanish, Swahili, Sylheti, Tagalog, Tamil, Thai, Tigrinya, Turkish, Ukrainian, Urdu, Vietnamese.

Please note that no guarantee is given that a particular pathway and language combination  will be set for future exam sessions. Availability is dependent on the number of candidates registering for a specific pathway and language combination in any given year.