Phoenix police spent the day at a house in West Phoenix where a suspect was allegedly finishing up a batch of methamphetamine.
The Maricopa County Sheriff's Office Meth Task Force also responded to the scene near 75th Avenue and Indian School Road.
Police say they found 20 gallons of the liquid form of meth in the finishing process, ready to turn into crystallized meth.
They said the house is vacant and a source told ABC15 the suspect broke into the house to finish up the product.
Police started investing the suspect about a month ago on unrelated charges and was following up on the investigation when they saw his vehicle at the house.
When they opened the door to the home they could smell the chemicals used in the final processing of meth.
One man who has lived in the neighborhood for 30 years says his sense of comfort is a thing of the past.
That's scary because I didn't even know there was a lab up the street," Mary Roberts said. "There are so many empty homes, people are moving in... they are moving out."
Police said they have a 26-year-old man in custody.
Authorities said at one point Phoenix had 180 lab busts in one month, now they're down to an average of two per month.