27 May 2024

The controversial police tactic under the spotlight

From Nights, 10:18 pm on 27 May 2024

In 2022, the case against three men accused of murdering Upper Hutt woman Lois Tolley fell over after a judge ruled evidence - including a confession - had been improperly obtained, and was inadmissible in court. 

Part of the reason was the use of a mysterious interviewing technique called the Complex Investigation Phased Engagement Model, or CIPEM.

Now a international expert who validated the interviewing technique says her conclusions were wrong and it doesn't meet international standards for evidence-gathering.

Journalist Mike White has been investigating the issue for Stuff and speaks to Nights about the latest developments.

Police are looking for four men in their 20s after a 30-year-old woman was killed at her home in Upper Hutt.

Lois Tolley was killed in 2016. Charges were dropped against her three alleged assailants in late 2021. Photo: RNZ / Supplied / NZ Police