Question: when was the disclosure and barring service introduced
Answer: in 2012

title: Disclosure and Barring Service
text: Disclosure and Barring Service The Disclosure and Barring Service (DBS) is a non-departmental public body of the Home Office of the United Kingdom. The DBS enables organisations in the public, private and voluntary sectors to make safer recruitment decisions by identifying candidates who may be unsuitable for certain work, especially that involving children or vulnerable adults, and provides wider access to criminal record information through its disclosure service for England and Wales. The DBS was formed in 2012 by merging the functions of the Criminal Records Bureau (CRB) and the Independent Safeguarding Authority (ISA) under the Protection of Freedoms Act