yng Nghymru, mae rhywun sy’n gwneud trefniadau neu sy’n mynd ati i roi twll mewn rhan bersonol o gorff person dan 18 oed yn cyflawni trosedd. Felly mae gwneud trefniadau penodol i gyflawni’r weithred o dyllu person heb fod unrhyw dyllu wedi digwydd yn ddigon i olygu bod trosedd wedi’i chyflawni.mae’n amddiffyniad os yw’r ymarferydd wedi credu bod y person yn 18 oed neu’n hŷn a’i fod wedi cymryd camau rhesymol i sefydlu faint yw ei oed, neu na allai neb fod wedi amau o olwg y person ei fod o dan 18 oed. Hefyd, mae amddiffyniad ‘diwydrwydd dyladwy’ i berson sydd wedi’i gyhuddo o drosedd yn rhinwedd camau a gymrwyd gan rywun arall.mae’n amddiffyniad os gall y person a gyhuddwyd o’r troseddau hyn ddangos iddo gymryd pob cam rhesymol a gweithredu diwydrwydd dyladwy i osgoi cyflawni’r drosedd, er enghraifft rhoi hyfforddiant i’w staff neu roi systemau ar waith i osgoi cyflawni’r drosedd.mae’n ddyletswydd ar awdurdodau lleol i gyflawni camau gorfodi mewn perthynas â’r darpariaethau, gan gynnwys gwneud erlyniadau, ymchwilio i gwynion a chymryd camau eraill.rhaid i awdurdodau lleol ystyried, o leiaf unwaith bob 12 mis, i ba raddau mae’n briodol iddynt gyflawni rhaglen o gamau gorfodi yn eu hardal i atal tyllu rhannau personol o gorff pobl dan 18 oed, a rhaid i awdurdodau lleol benodi ‘swyddogion awdurdodedig’ i gyflawni’r dibenion hyn.wrth gyflawni rhaglen o gamau gorfodi, rhaid i awdurdodau lleol ymgynghori â Phrif Swyddog yr Heddlu a gall yntau gynorthwyo awdurdodau lleol i orfodi’r darpariaethau.darperir pwerau mynediad i swyddogion awdurdodedig awdurdodau lleol a’r Heddlu, er y bydd angen gwarant gan Ynad Heddwch er mwyn cael mynediad i leoliad sydd hefyd yn dŷ annedd heb gael caniatâd y meddiannydd. Unwaith y bydd y swyddog neu’r aelod o’r heddlu wedi cael mynediad, gall gynnal archwiliad o’r safle a chael copïau o gofnodion megis teledu cylch cyfyng neu ddogfennau caniatâd.ynghyd â phwerau mynediad mae trosedd gysylltiedig o rwystro swyddog rhag gweithredu ei bwerau a chamau diogelu mewn perthynas â defnyddio pwerau mynediad ac archwilio trwy ddarparu mecanwaith i apelio yn erbyn mynd ag eiddo i ffwrdd, a gwneud cais am iawndal dan rai amgylchiadau.
it is an offence for a person in Wales to perform or make arrangements to perform an intimate piercing on a person who is under the age of 18. This means that making arrangements to carry out the piercing on a particular person without any piercing taking place is sufficient for an offence to be committed.it is a defence that the practitioner believed the person was aged 18 or over and either they had taken reasonable steps to establish their age or that nobody could reasonably have suspected from the person’s appearance that they were under 18.  There is also a ‘due diligence’ defence for a person who is accused of an offence by virtue of the actions of another.it is a defence for the person accused of these offences to demonstrate that they took reasonable precautions and exercised due diligence to avoid committing the offence, for example providing training to their staff or putting systems in place to avoid committing the offence.local authorities have a duty to undertake enforcement action in relation to the provisions, including bringing forward prosecutions, investigating complaints and taking other steps.local authorities must consider, at least once every 12 months, the extent to which it is appropriate for them to carry out a programme of enforcement action within their area to prevent the intimate piercing of persons under 18 years, and  local authorities must appoint ‘authorised officers’ for these purposes.in undertaking a programme of enforcement action, local authorities must consult with the Chief Officer of Police who may assist local authorities with the enforcement of the provisions.powers of entry are provided to local authority authorised officers and the Police, although access to premises used as a dwelling without consent will require a warrant by a Justice of the Peace. Once the officer or the constable has gained entry, they may undertake an inspection of the premises and obtain copies of, for example, CCTV records or consent documents.the power of entry is accompanied by an associated offence of obstructing an officer from exercising their powers and safeguards in relation to the use of the powers of entry and inspection by providing a mechanism to appeal against the removal of property, and to apply for compensation in certain circumstances.