HONOLULU (KHON2) -- Honolulu police are seeing a sharp rise in ghost gun cases spotlighting a growing public safety concern. The alarming trend in these homemade weapons that are going undetected by officials is prompting police to ramp up their efforts to protect the community. Get Hawaii's latest morning news delivered to your inbox, sign up for News 2 You As of October of this year, Honolulu police have made 88 cases involving ghost guns, compared to about 50 last year - that's a 70 percent rise. HPD on Thursday displayed the startling similarities between registered legal guns and ghost guns, which are untraceable firearms assembled from kits or 3-D printing. "The serial number here, it doesn't have any markings, meaning until we seized it, we didn't know it existed," said HPD Major Mike Lambert, pointing out almost identical rifles confiscated by police. Officials attribute the rise to accessibility of gun kits and advancements in 3-D printing which allows anyone the ability to create firearms at home. Hawaii’s recycled plastic, asphalt road shows ‘no increased leaching’ 2 years in "They're ending up in the wrong hands and because there's no documentation process, the reality is we don't know how many ghost guns are floating around the United States, more particularly, Honolulu, right? We literally have no idea," said Lambert. Just last year, 21-year-old Paul Cameron was charged with throwing acid on a woman who refused to date him. He allegedly had a ghost gun that didn't work. This is prompting HPD to propose stricter legislation on the sale and transfer of ghost guns between states. They also want to make possession of gun parts illegal. HPD is also planning to introduce legislation to make jail time mandatory for place to keep firearms offenses. "It doesn't matter where you made it, how you made it, you shouldn't be walking around town with it," said Major Lambert. Download the free KHON2 app for iOS or Android to stay informed on the latest news To take these crimes to the federal level, HPD has initiated a task force with the High Intensity Drug Trafficking Area program (HIDTA) and ATF to investigate the production and sale of ghost guns.