If you are looking to use the New York state police logo on a website or for a poster, you can easily find the appropriate vector file. This particular file has a transparent background with a resolution of 605×600 pixels. This PNG file is also available for download free of charge.
Many online sources offer free logo downloads. The largest one is Brands of the World, an open library of free vector logos. You can search and download vector logos in various file formats, including AI, EPS, PDF, SVG, CDR, and more. The site offers a critique forum as well as downloads.