the same illegal light show that has her owner, rob jaeger, wondering who is behind the thunderous explosives. >> the mystery is with all of the unemployment, everyone at home with quarantine, where is everyone getting professional-grade fireworks. >> reporter: they say they appear more powerful. oakland police have seen a jump in 911 calls that reflect those public safety concerns. >> we are listening to the concerns of our community. not only are we hearing you, we're seeing it as well. >> reporter: the oakland fire department is also on alert. more than a month into fire season, firefighters have put out five fires that were sparked by fireworks. one in the oakland hills. >> people are at a point of, okay, enough is enough. >> reporter: officers have yet to cite anyone for possessing illegal fireworks while many see them as an unsafe inconvenience and others say the light show is a release. >> it's a combination of being cooped up in their houses for a long time. i mean all of us. the fact that juneteenth fell on a friday. the political situation that's going on and people need to, you kno