Via ProFootballTalk (Note the arrest on March 29 of a cheerleader):
7/16/2012: Cowboys WR Dez Bryant is arrested for family violence.
7/14/2012: Seahawks RB Marshawn Lynch is arrested for DUI.
7/14/2013: Broncos DE Elvis Dumervil is arrested for aggravated assault.
7/13/2012: Jaguars DE Odrick Ray is arrested for outstanding traffic tickets.
7/8/2012: Eagles RB Dion Lewis is arrested for felony false reporting of a fire and misdemeanor reckless endangerment.
7/7/2012: Vikings RB Adrian Peterson is arrested for resisting arrest.
7/3/2012: Browns DT Kiante Tripp is arrested on burglary charges.
7/2/2012: Buccaneers CB Eric Wright is arrested for DUI.
6/23/2012: Lions CB Aaron Berry is arrested for suspicion of DUI.
6/10/2012: Giants OT David Diehl is arrested on suspicion of DUI.
6/3/2012: Jaguars WR Justin Blackmon is arrested for “aggravated” DUI.
6/2/2012: Vikings FB Jerome Felton is arrested for DUI.
5/27/2012: Lions DT Nick Fairley is arrested for DUI and eluding police.
5/9/2012: Raiders WR Darrius Heyward-Bey is charged with DUI.
4/28/2012: Vikings RB Caleb King is arrested for assault.
4/26/2012: Redskins S Brandon Meriweather is arrested for DUI.
4/3/2012: Lions DT Nick Fairley is arrested for marijuana possession.
3/30/2012: Dolphins LB Koa Misi is arrested on battery charges.
3/29/2012: Bengals cheerleader Sarah Jones is indicted for first degree sexual abuse.
3/17/2012: Free-agent C Samson Satele is arrested for disorderly conduct.
2/26/2012: Seahawks OL Jarriel King is charged with third degree criminal sexual conduct.
2/25/2012: Seahawks LB Leroy Hill is arrested for possession of marijuana.
2/23/2012: Jaguars DT Nate Collins is arrested for possession of marijuana.
2/13/2012: Bears LB J.T. Thomas is arrested for possession of marijuana.
2/10/2012: Bengals LB Rey Maualuga is charged with misdemeanor assault.
2/8/2012: 49ers DE Ray McDonald is arrested on an outstanding warrant.
2/1/2012: Broncos RB Knowshon Moreno is arrested for DUI.
1/27/2012: 49ers LB Aldon Smith is arrested for DUI.
1/23/2012: Lions OL Johnny Culbreath is arrested for marijuana possession.
2011 and earlier here.