It may happen occasionally that, after completion of a search report, the search division discovers further relevant documents (e.g. in a later search for a related application). Such documents may be used in examination (see C‑IV, 7.4).
Source: http://www.epo.org/law-practice/legal-texts/html/guidelines/e/b_iv_3_2.htm
Date retrieved: 17 May 2021