After a tenant enforces their rights (a notice to remedy breach, a repair request, an emergency repair reimbursement claim or a tribunal application), complains to the Authority or another government body, or while a tribunal order is in force, the lessor does not respond by a notice to remedy (other than for 7 days' rent arrears), a rent increase, action to end the tenancy (including an end of fixed term notice) or refusing a further agreement, to intimidate or punish the tenant; the tribunal can set such action aside.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.