Hi Gary, this is a good question. I need to check a little bit about how to create those queries. RIght now the information is being sent to the Human Task server and it's persisted through JPA to the jbpm-human-task structures in the DB. Extending that module to be able to query the information that it's being sent by the process should be so hard, but it needs to be done as far as I know. I will take a look on the current status and probably write about it. I will take note of this request so I can tackle down as soon as possible.
Cheers