It Was a Dark and Stormy Night: Critical Decisions in the First Hours of a Crime Scene Investigation

02 Jul 2026
Theatre 2

A gallop through the initial stages of a serious crime investigation.

What constitutes a serious crime investigation for an OFM in the MPS – what type of incident could we be deployed to and which ones need an assessed response.

What information is needed to start the decision-making process. How much of it is likely to be available in the initial stages of an investigation, is it likely to be 100% accurate and how quickly could it change.

What process do we follow and what could influence it.

What other factors are at play that influence early-stage decision-making - the short term issues versus the long-term issues and trying to predict the future.   

Expecting the unexpected.  Dealing with the curved balls, which can be many and varied.

Speakers
Trish Lannigan
Trish Lannigan, Operational Forensic Manager - MO4 Forensics Services, Metropolitan Police Service