Getting data in Custom MPM

Hi Team,

I am new to IFS and currently trying to create below custom MPM in CustomPolicies > ServiceLogisticsCustBusPolicyMgr.cs class. Can you please advise if below is the right way of getting task data in custom MPM? I am trying to initialize Business Entity for task. 

In case it is not the right way then please advise how can I get task data inside custom MPM.

 public DataTable GetTaskData()
 {
            Metrix.BusinessEntities.taskDataTable objtaskdt = new Metrix.BusinessEntities.taskDataTable();
            return objtaskdt;
 }