My understanding is slightly different. The MO can recommend sanctions on the cllr, but cannot impose them. It is the council that then should consider the MO's recommendations and impose them (or not, or different sanctions) on the cllr. The MO decides whether or not the cllr has breached the code, but the sanctions, if any, are decided by the council of which the cllr is a member, based on the recommendations from the MO. There are limitations to any sanctions imposed - eg. the cllr cannot be 'sacked'.