You may use and must maintain the property for at least one year prior to disposing of the equipment. Exceptions are that you may transfer the property to another 1033 enrolled agency or you may destroy the property if it is beyond economical repair. Documentation is the key to any form of disposition. Keep good records. Because of certain operations that may be supported on a short-term basis they may be.
Preference is really determined on how proactive department is in the program.
The Internet and screening trips will decide who gets what. If your agency screens regularly, you will receive more property than an agency that screens one or twice a year. Bullets, brass casings, precious metals are the major items that you want to stay away from. These will not be approved. Most everything is approved if there is a sound explanation of its use for drug law enforcement.