When did he get arrested?
a couple of years ago for possession
PJ tells his own version of it in one of his radio episodes with erin. As usual it was all a big misunderstanding, he got caught by association just because his training partner turned out to be a bad guy in the mafia ( go figure, you assist a guy on ass squats for years only to find this shit later), yadda, yadda.
Bottom line he got 'cleared' (good triumphs over evil) and changed coasts just to be double clear. However, things in cali have not gone well and he is planning to move to jew town-boca raton- with erin singerman so that they can pursue shady businesses together.
Despite the fact that erin is the brains , the pj handouts are a price he is willing to pay to get him out of the house away from his impending child, which i am sure erin has much regretted by now, (you see erin singerman real love was erin stern- but i guess stern figured that a guy who was convicted at 18 and spent much of his 20s in hardcore drug haze, was not good enough for her)