A Victorian man who blew himself up during a stand-off with police was wearing a bomb vest but did not intentionally trigger it, a court has heard.
Glenn Sanders, 48, was killed and two police officers were seriously injured in the massive blast which destroyed the man's Derrinallum house in the early hours of Saturday April 12.
The Victorian Coroners Court heard Sanders confronted Special Operations Group (SOG) police about an hour after they arrived at his property in an armoured van on the Friday night.
Sanders was wearing a "vest bra containing explosives" and he was also known to have other bombs on the property.
"He approached police inside the armoured van, and complied with an order to stay 25 metres away," counsel assisting the coroner Jessica Wilby said on Wednesday.
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"He did not comply with an order to remove his clothes ... lifting up his shirt to show a det cord.
"He told police that he was going to blow himself up, but that he did not want to harm police."
Some hours later there was an explosion in the house, injuring the SOG officers.
"(This) appeared to surprise Mr Sanders, moving his shoulders up and this has exploded his vest," Ms Wilby said.
A coroners court hearing must be held within 28 days of a death involving police.
A further briefing document will be provided to Coroner John Olle by September 6, and a decision will then be made on whether to hold an inquest into the death.
