Investigators have been sifting through the wreckage of a microlight crash near Timaru.
Lifelong aviator Jack Mehlhopt and senior local police officer Randel Tikitiki were killed when their aircraft crashed onto a dairy farm during a routine training flight on Friday.
Civil Aviation Authority investigators began work on Saturday, and were expected to wrap up their scene examination yesterday.
A CAA spokesman says there are several eyewitnesses yet to be spoken to.
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