saving an image object in sql server database from action method

   [HttpPost]
   public void Test(HttpPostedFileBase file)
   {
       UsersContext db = new UsersContext();

       byte[] image = new byte[file.ContentLength];

       file.InputStream.Read(image, 0, image.Length);

       CrimeReport i = new CrimeReport 

       { 
       ImageId=1, ImageName="Ali",ImageContent = image,
       Active=true
       };
       db.CrimeReports.Add(i);

       db.SaveChanges();
   }

I am getting an exception on db.CrimeReports.Add(i);