Why Should You Study the DPSI Law?
The qualification that opens doors in legal interpreting
If you want to work as an Interpreter in courts, police stations, solicitors' offices or immigration tribunals in the UK, the Diploma in Public Service Interpreting (DPSI) Law is the qualification to aim for. In many of these settings it's expected as standard. The DPSI Law is a Level 6 Ofqual-regulated qualification awarded by the Chartered Institute of Linguists (CIOL), the UK's Royal Charter professional body for language professionals. It has been the benchmark qualification for public service Interpreters for over 30 years, and it's widely referenced across the justice sector, including in relation to the Police Approved Interpreter and Translator (PAIT) scheme and the National Register of Public Service Interpreters (NRPSI). Requirements do change, so check the current position with the relevant body before you commit.
What changed in 2026?
The CIOL has unified DPSI Law into a single UK-wide pathway, replacing the separate regional routes that previously applied across England, Wales, Scotland and Northern Ireland. If you already hold the qualification, nothing changes for you. If you're studying now or about to start, you'll be working from one route rather than several.
Our course materials have been fully updated to reflect this, including nation-specific addenda for Scotland and Northern Ireland. Two other changes are reflected throughout: the Supreme Court replaces the House of Lords in the course materials, and Scotland's "not proven" verdict was abolished in January 2026.
What the DPSI exam actually involves
The DPSI is assessed in five units, and you'll sit all of them.
Unit 1 is oral. It covers consecutive interpreting in both directions and simultaneous interpreting (whispered, in one direction), recorded live with a role play based on a realistic legal scenario.
Units 2 and 3 are sight translation, one in each direction. You're given a written text and asked to read it aloud in the other language, with very little preparation time.
Units 4 and 5 are written translation, again one in each direction. These are the units where accuracy, register and terminology are scrutinised most closely. Because the units are separate, you can pass some and resit others.
What the course covers
The DPSI course from linguisttraining.com covers 37 modules and 81 exercises, taking you from the UK legal system and criminal justice process through to consecutive and simultaneous interpreting techniques, sight translation, legal terminology, and the professional ethics expected of a legal Interpreter. It's self-paced and fully online, with 24/7 access for 12 months. You'll develop a thorough understanding of how the UK courts operate, the different proceedings you might interpret in, and the specific challenges of legal interpreting: handling sensitive content, managing your impartiality, and dealing with distressing testimony. The course doesn't just prepare you for the exam; it prepares you for the job. The CIOLQ recommends around 80 Guided Learning Hours, plus your own self-study on top. Realistically, most students give themselves at least six months before an exam session, and longer if they're working full time.
Who it's for, and where to start if you're not ready yet
This is a demanding course for serious, committed linguists. You'll need a near-native command of both English and your other language, at least CEFR C1 to C2, and prior interpreting experience. If you're not there yet, start earlier in the route. The full interpreting route is FDTI, then CCI, then DPSI. The FDTI is the place to start if you're new, or if you've been told you need "a diploma" to work for a UK public sector organisation. The CCI, at Level 3, is the step between. Working in healthcare rather than the courts? The DPSI Health covers the same level in hospitals, GP surgeries and mental health settings. And if your work is written rather than spoken, look at the CertTrans at Level 6 or the DipTrans at Level 7 instead. Interpreting is a verbal skill; translation is a written one.
Why now, in particular?
Two things are shifting at once. The DPSI Law route has just been unified UK-wide, and new Ministry of Justice contracts take effect from October 2026, bringing updated qualification standards for Interpreters working across the justice system. The detail sits with the MoJ and the relevant bodies rather than with us, so check the current position directly, though the direction of travel is clear enough: formal qualifications are becoming more important, not less. Given that the course needs six months or more, and that CIOL runs DPSI Law sessions in June and November, anyone thinking about this should be starting now rather than at the point of registration.
What it costs
The DPSI Law course is £599, and the Big Bundle, which adds Sight Translation Papers, Translation Practices, Mock Exams and a LanguagePartner™ Mentor Session, is £1,199. We also offer our own payment plan, with no credit check and no application: £249 today then four monthly payments of £100 for the course, or £449 today then four monthly payments of £200 for the Big Bundle. Klarna and Clearpay are offered at checkout too, where available, subject to their approval. See all payment and funding options.
One thing to be clear about: the CIOL exam fee is entirely separate, and is paid directly to CIOL. Our course fee covers your course. Check the current exam fee on the CIOL website.
Preparing for the exam
The course stands on its own, and many students take it purely to develop their professional skills. If you do go on to sit the CIOL exam, you can add exam support at any point: Mock Exams under real exam conditions, Translation Practice papers marked with detailed feedback, and a LanguagePartner™ Mentor Session with a professional in your own language pair. Exam languages vary from session to session, so check the current list and the exam dates on the CIOL website or on our CIOL Exam Centre page before you register.
Our track record
linguisttraining.com won the CIOL Nuffield Trophy for Best DPSI Group Entry, an award reflecting outstanding candidate performance in DPSI examinations. "I highly recommend this course to all students who aspire to work as legal Interpreters," said one recent student. Another passed with both Distinction and Pass grades in the written exams. Read all our DPSI student feedback ↗
Level: 6 (Degree equivalent) · Cost: £599 · Access: 12 months
