Well thanks to Seb over at lawandorder-fr.com I have figured out which of the LO:CI episodes, the first 6 episodes of PEC will be adapting
Paris Enquêtes Criminelles adapted from LO:CI
#1 PEC Fantôme (Phantom) = LO:CI ‘Phantom’ (Marlane Gomard Meyer & René Balcer)
#2 PEC Requiem pour un assassin (Requiem For An Assassin)= LO:CI ‘The Faithful’ (Stephanie Sengupta)
#3 PEC Le serment (The Oath)= LO:CI ‘One’ (René Balcer)
#4 PEC Addiction (Addiction) = LO:CI ‘Smothered’ (Marlane Gomard Meyer)
#5 PEC L’Homme au scalpel (The Man Of The Scalpel) = LO:CI ‘The Good Doctor’ (Geoffrey Neigher)
#6 PEC L’Ange de la mort (The Angel Of Death)= LO:CI ‘Poison’ (Stephanie Sengupta)
There are also some casting updates to make here
Commander Vincent Revel (Vincent Perez)
Lieutenant Claire Savigny (Sandrine Rigaux)
Police Chief Bonnefoy (Jacques Pater)
Judge Lherbier (Hélène Godec)
Judge Fontana (Laure Killing)
Note that the ADA/prosecutor role is replaced by a Judge in PEC. Apparently there will be two judges who will be at the minimum recurring characters on PEC, both of whom are female! In some episodes you can expect to see both Judges Lherbier and Fontana while in others it is not clear whether both judges will have parts (things are still a bit slow to get out via the French media).
There will be 2 more episodes of PEC for its first season…I will update later when TF1 puts out more information on them.