SOMA’s legislatively enumerated purposes demonstrate that a special need -- not an immediate need to gather evidence to pursue criminal charges -- motivates the GPS monitoring prescribed by the Legislature. That satisfies the first step in a special needs analysis and allows the determination that this search may be constitutional. The Court therefore balances the interests of the parties and concludes that, although GPS monitoring is a significantly invasive search, it is outweighed by the compelling government interest advanced by the search and H.R.’s severely diminished expectation of privacy. The Court notes that H.R.’s PSL status is critical to that conclusion.