La. Stat. tit. 14 § 25
An accessory after the fact is any person who, after the commission of a felony, shall harbor, conceal, or aid the offender, knowing or having reasonable ground to believe that he has committed the felony, and with the intent that he may avoid or escape from arrest, trial, conviction, or punishment.
An accessory after the fact may be tried and punished, notwithstanding the fact that the principal felon may not have been arrested, tried, convicted, or amenable to justice.
Whoever becomes an accessory after the fact shall be fined not more than five hundred dollars, or imprisoned, with or without hard labor, for not more than five years, or both; provided that in no case shall his punishment be greater than one-half of the maximum provided by law for a principal offender.
La. R.S. § 14:25