  Administrative justice concerns the relationships between individuals and the
state. It includes redress and complaints on decisions of a child's education,
social care, licensing, planning, environment, housing and homelessness.
However, if someone has a complaint or an issue, it is challenging for people
to understand different possible redress paths and explore what path is
suitable for their situation. Explanatory visualisation has the potential to
display these paths of redress in a clear way, such that people can see,
understand and explore their options. The visualisation challenge is further
complicated because information is spread across many documents, laws, guidance
and policies and requires judicial interpretation. Consequently, there is not a
single database of paths of redress. In this work we present how we have
co-designed a system to visualise administrative justice paths of redress.
Simultaneously, we classify, collate and organise the underpinning data, from
expert workshops, heuristic evaluation and expert critical reflection. We make
four contributions: (i) an application design study of the explanatory
visualisation tool (Artemus), (ii) coordinated and co-design approach to
aggregating the data, (iii) two in-depth case studies in housing and education
demonstrating explanatory paths of redress in administrative law, and (iv)
reflections on the expert co-design process and expert data gathering and
explanatory visualisation for administrative justice and law.
