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Deddf yr Amgylchedd Hanesyddol (Cymru) 2023

Statws

This is the original version (as it was originally enacted).

178Mynediad at dystiolaeth mewn ymchwiliad
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(1)Mewn ymchwiliad lleol a gynhelir o dan y Rhan hon—

(a)rhaid clywed tystiolaeth lafar yn gyhoeddus, a

(b)rhaid i dystiolaeth ddogfennol fod ar gael i’r cyhoedd edrych arni.

(2)Ond os yw awdurdod gweinidogol wedi ei fodloni bod y ddau amod yn is-adran (3) wedi eu bodloni mewn perthynas ag ymchwiliad, caiff gyfarwyddo nad yw tystiolaeth o ddisgrifiad a bennir yn y cyfarwyddyd i’w chlywed nac ar gael i edrych arni yn yr ymchwiliad hwnnw ond gan bersonau a bennir yn y cyfarwyddyd neu gan bersonau o ddisgrifiad a bennir ynddo.

(3)Yr amodau yw—

(a)y byddai rhoi tystiolaeth o ddisgrifiad penodol yn gyhoeddus neu ei rhoi ar gael i’r cyhoedd edrych arni yn debygol o arwain at ddatgelu gwybodaeth—

(i)am ddiogelwch cenedlaethol, neu

(ii)am y mesurau a gymerwyd neu sydd i’w cymryd i sicrhau diogelwch unrhyw dir neu unrhyw eiddo arall, a

(b)y byddai datgelu’r wybodaeth i’r cyhoedd yn erbyn y buddiant cenedlaethol.

(4)Os yw awdurdod gweinidogol yn ystyried rhoi cyfarwyddyd o dan yr adran hon, caiff y Cwnsler Cyffredinol benodi person (“cynrychiolydd a benodir”) i gynrychioli buddiannau unrhyw berson a fydd yn cael ei atal rhag clywed unrhyw dystiolaeth neu edrych ar unrhyw dystiolaeth mewn ymchwiliad lleol os rhoddir y cyfarwyddyd.

(5)Os nad oes cynrychiolydd a benodir pan fydd awdurdod gweinidogol yn rhoi cyfarwyddyd o dan yr adran hon, caiff y Cwnsler Cyffredinol benodi person yn gynrychiolydd a benodir ar unrhyw adeg at ddibenion yr ymchwiliad.

(6)Caiff Gweinidogion Cymru drwy reoliadau wneud darpariaeth ynghylch—

(a)y weithdrefn sydd i’w dilyn gan awdurdod gweinidogol cyn iddo roi cyfarwyddyd o dan yr adran hon mewn achos pan fo cynrychiolydd a benodir;

(b)swyddogaethau cynrychiolydd a benodir.

(7)Yn yr adran hon ac adran 179, ystyr “awdurdod gweinidogol” yw Gweinidogion Cymru neu’r Ysgrifennydd Gwladol.

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