2021 OHIA Annual Conference (Preparations are underway) Please check our website for details on future training and the annual OHIA conference (2021). Details to follow when available. Major Case Management 2020 Newsletter Click here: MCM Newsletter Nov 2020.pdf The Ontario Major Case Management Unit is pleased to release the first edition of the MCM Connection; a quarterly newsletter to keep you informed of new initiatives, the most up-to-date forms and information on how the MCM Unit can be a support to you in your major case investigations.