Kindergarteners found a syringe

Dear Színes Erzsébetváros, Today my 4-year-old daughter brought me a used syringe in Rózsák tere, where we play outside with the other children every day after kindergarten. I would like to inquire if there are any plans to hire a security guard, park ranger, cleaner or other staff that could prevent or reduce such incidents? Many babies and preschoolers play outside in the park every afternoon, as it is next to a kindergarten. I understand that dogs are not allowed, but we regularly see dogs inside the fence. It seems as if the park is not really monitored. Please let me know what they can do to prevent similar incidents?