OROVILLE, Calif. -

A training conference Wednesday in Oroville saw 18 code enforcement officers from around the Northstate learning how to spot the evidence of honey hash oil and meth labs, and also the signs of possible child endangerment.

Honey hash oil is a refined form of marijuana that uses butane gas to manufacture the product, creating a rise in destructive and harmful explosions and fires around Northern California and elsewhere.

"It's a big epidemic in California, in our county - in Butte [County]," said Ron Belser, Oroville senior code enforcement officer. "We just got code enforcement officers together and anybody who wanted to come do the workshop and basically spread the awareness."

Code enforcement officers from as far away as Sacramento gathered to receive certification on what to look for when out conducting code violation investigations. For honey oil labs they were told to keep an eye out for butane gas canisters, PVS pipes and glass dishes laced with brown substances.

Jeremy Strang, a code enforcement supervisor and building inspector in Yuba County, attended with several members of his staff.

"The purpose of the training was simply to get the people that are in the field, other than law enforcement, the information that they need to identify the precursors or the things that are used with the manufacture of honey oil," he said.

The training Wednesday at the Table Mountain Golf Course conference room was organized by the City of Oroville.

Each officer in attendance earned certification after the day-long training, and will go back to their respective enforcement areas to help police and sheriff's officials as they try to crack down on the growing honey hash oil industry, as well as the methamphetamine trade and child endangerment instances.