Sail y dystiolaeth:Ymweliadau â sampl gynrychioliadol o ysgolion uwchradd ac ysgolion preswyl annibynnol ledled Cymru. Ni fydd yr ysgolion hyn yn cael eu henwi yn yr adroddiad.  Bydd arolygwyr yn cyfarfod â phenaethiaid, uwch arweinwyr, athrawon, staff cymorth a grwpiau ffocws disgyblion, ac yn gofyn i ddisgyblion lenwi holiadur byr.Cyfweliadau ag asiantaethau sy’n gweithio gyda phlant a phobl ifanc / yn cefnogi ysgolion.Adolygiad cynhwysfawr o ymchwil, arweiniad, pecynnau cymorth sydd ar gael i gefnogi dioddefwyr, cyflawnwyr a staff ysgolion.
The evidence base:Visits to a representative sample of secondary and independent boarding schools across Wales. These schools will not be named in the report. Inspectors will meet with headteachers, senior leaders, teachers, support staff and pupil focus groups and ask pupils to complete a short questionnaire.Interviews with agencies that work with children and young people/ support schools.A comprehensive review of research, guidance, toolkits available to support victims, perpetrators and school staff.