SWAMPSCOTT ? This Saturday from 10 a.m. until 2 p.m., Phillips Park will be swarming with public safety vehicles and personnel.Public Safety Day, which is sponsored by the police and fire departments, is a free event that is always well attended.Even though it is an annual event it offers something new each year, according to Officer Brian Wilson.Are departments expected to participate in the event include the Peabody Police, Salem Police,Marblehead Police, Nahant Police, Environmental Police, the M.S.P.C.A and Action Ambulance. Children will also be allowed to get a close look at several pieces of fire apparatus. During the event the Boston Medflight Helicopter is expected to land.?We’re supposed to have two helicopters land this year,” he said. “That’s always a big thing for the kids.”Raffles, fingerprinting for children, a moon bounce, along with refreshments, are only a few of the attractions. Wilson said the event would also include demonstrations by the Massachusetts State Police and Essex County Sheriff Dept. K-9 units, which are extremely popular with the kids.Wilson said in past years the turnout has been tremendous and the department is hoping for an even better turnout this year.Swampscott Fire Chief Michael Champion said the department would have numerous hands on activities and demonstrations.?We’re going to set up a portable house display,” he said. “The kids will be able to shoot water at it.”Champion said firefighters would have an old vehicle on hand and would demonstrate how the roof is removed off the car for extrication purposes.?The aerial ladder will be there, he said. “We’ll give kids tours of the apparatus and we’ll have demonstrations on the use of portable fire extinguishers.”Members of the Massachusetts Brain Injury Foundation will be on hand to offer advice on how to ensure bike helmets fit properly and parents can have their children fingerprinted free of charge.Madigan said the event offers children and adults alike an opportunity to interact with first responders.?The kids and parents have the opportunity to ask questions of the emergency personnel there,” he said. “And see firsthand some of the equipment that is used in their daily course of business.”The event, which runs from 10 a.m. to 2 p.m., will also include a free raffle for children. Food and beverages will be available for purchase.