The survey involved the testing of 60 lamb curries sourced in Birmingham and London.

The curries were DNA tested for a variety of meats including lamb, chicken, beef, pork, turkey, goat and horse.

Samples were considered to be adulterated if it contained more than 5% of another meat.

In Birmingham, five takeaways had no lamb while 11 were lamb mixed with beef and/or chicken.

In London, two had no lamb while five were adulterated with beef and/or chicken. A further five were not possible to test due to excessive cooking destroying DNA.

Following the findings of the survey, the UK’s Food Standards Agency has announced a testing beginning next month of 300 samples from takeaway restaurants.

In the UK, the mislabelling of food can result in fines of up to £5,000 (€6,098).

Since last year’s horse meat scandal, Which? has launched a ”Stop Food Fraud” campaign calling on UK Government agencies to prioritise food controls, standards and their enforcement to restore consumer confidence in meat.