MMJ Spots

My fiance recently applied to the academy, but was disqualified at the interview because he admitted using marijuana 4 months previously (in December of ’07). I was wondering how he should wait before applying again? He did not use marijuana frequently in the past, and has not used it since December ’07. It is his dream to be an officer, and takes it very seriously, especially since we’re expecting a baby boy next month, and he wants to set a good example for his son. Any advice is greatly appreciated! Thank you.