The investigator's craft

Developments in the Wonnangatta campers case and the search for William Tyrrell has Andrew Rule looking at how detectives hone in on vital clues in missing person cases.

Read more of Rule's columns at https://heraldsun.com.au/andrewrule

If you or anyone you know needs help:
Lifeline: 13 11 14
Beyond Blue: 1300 22 4636
Kids Helpline: 1800 55 1800

See omnystudio.com/listener for privacy information.