Cyngor Gwynedd has a work of attraction to children and should beryllium taxable to an autarkic review, according to Liz Saville-Roberts.
The MP made her request pursuing the jailing of paedophile headteacher Neil Foden.
He was sentenced to 17 years successful situation for sexually abusing 4 children successful northbound Wales betwixt 2019 and 2023.
The Welsh authorities said it was waiting for the decision of the already underway Children's Practice Review earlier deciding connected immoderate further action.
Cyngor Gwynedd, oregon Gwynedd council, said it is contributing afloat to the reappraisal and an autarkic reappraisal was needed to recognize what went wrong.
The telephone for a reappraisal comes successful summation to the increasing demand for a afloat nationalist inquiry, which would unit witnesses to lend to the process.
Foden, 66, may person abused pupils for much than 40 years.
Saville Roberts said: "I consciousness precise powerfully that we person a work of attraction to the children who are successful the Gwynedd acquisition strategy astatine the infinitesimal - Ysgol Friars and different schools, their parents and their communities.
"There is truthful a work connected Cyngor Gwynedd to committee a reappraisal of their existent kid extortion processes, and for that to beryllium an autarkic review.
"We have, arsenic a radical of councillors, called for an autarkic review. I expect the enactment of Cyngor Gwynedd to enactment connected that request from the radical for an autarkic review."
Ms Saville Roberts refused to support oregon enactment the enactment of Cyngor Gwynedd and the mode it has dealt with the situation, aft being asked to clarify her position.
She said: "I person a work to enactment connected behalf of the public. I privation the nationalist to person assurance successful the assembly and I americium looking for grounds to beryllium that now."
The MP besides called for the erstwhile headmaster's pension to beryllium pulled.
"I and a fig of Members of Parliament successful the north-west enactment the NASUWT teachers' national which is putting unit connected the curate for acquisition astatine Westminster, due to the fact that they are liable for pensions, and withdrawing Neil Foden's nationalist pension," she said.
"If his offences person undermined the public's assurance successful a nationalist service, determination is country to question whether his pension tin beryllium forfeited. I deliberation that is an perfectly indispensable step."
The UK and Welsh governments and the assembly were contacted but it remains unclear who is liable for deciding the aboriginal of Foden's pension.