I saw on TMZ that it could be so that he can become some sort of reservist community cop... or something to do with law enforcement, which requires no felony convictions.
If true, that's better than just doing it to make money through business dealings. But he should still seek forgiveness from his victims and have them adequately compensated if he hasn't already.
(or this police thing could just be an excuse to more easily get the pardon, and then go off to do the business stuff when he gets it)