West Allis firefighters and SWAT team are letting it rip, as they tear holes in roofs and saw through big doors in hopes that the practice will pay off when they face emergencies. Chr. Hansen, global bioscience company with a plant in West Allis, made it possible by inviting firefighters and police to do their destructive best on the 11 vacant buildings the company will raze. The apartment buildings that border its plant at 9015 W. Maple St. will be cleared so the company can expand. “We’ve been part of the West Allis community for nearly 90 years,” Johan Weimann, president, Chr. Hansen North America, said in a news release. “It’s important to us that we collaborate with community members and organizations such as the fire department to create a better, safer community for us all.”