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Please listen to Season 4, Episode 36 for Part 1 of this two-part case.

Listener caution is advised, as this episode contains adult themes and descriptions that some listeners may find distressing.

Sally Challan was found guilty of murdering her husband Richard in 2010, but over the intervening years, much was changing in the outside world.

There were amendments to the domestic abuse laws in England and Wales, introduced under the 2015 Serious Crime Act, specifically coercive control.

Coercive or controlling behaviour does not relate to a single incident.

It is a persistent pattern of incidents that occur over time in order for one individual to exert power, control or coercion over another.

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