3.1 Legal co-operation 3.2 Means of giving or taking evidence 3.3 Letters rogatory 3.4 Procedures before the competent authority 3.5 Costs of taking evidence 3.6 Taking of evidence by an appointed person Source: http://www.epo.org/law-practice/legal-texts/html/guidelines/e/e_iv_3.htmDate retrieved: 17 May 20219 references found. Click X to load a reference inside the current page, click on the title to open in a new page.EPO Guidelines - E General Procedural MattersXGL E Communications Loading...XGL E IV – Taking and conservation of evidence Loading...XGL E IV 3.1 Legal co-operation Loading...XGL E IV 3.2 Means of giving or taking evidence Loading...XGL E IV 3.3 Letters rogatory Loading...XGL E IV 3.4 Procedures before the competent authority Loading...XGL E IV 3.5 Costs of taking evidence Loading...XGL E IV 3.6 Taking of evidence by an appointed person Loading...Case Law Book: III AmendmentsXCLR III G 2.2.1.E Hearing a witness before a national courtLoading...