Okay, so this talent takes a total of 500-600xp to get total, but if I am reading this right, it seems very overpowered.
The wording is essentially, for Investigation skills, you can substitute an Intelligence Test.
The thing is, THESE are all the Investigation skills…..
Common Lore: Adeptus Arbites, Machine Cult, Administratum, Ecclesiarchy, Imperial Creed, Imperial Guard, Imperium, Tech, Underworld, War
Forbidden Lore: Black Library, Cults, Daemonology, Heresy, Inquisition, Archeotech, Mutants, Ordos, Adeptus Mechanicus, Psykers, Warp, Xenos
Scholastic Lore: Beasts, Bureaucracy, Chymistry, Cryptology, Heraldry, Imperial Creed, Judgement, Legend, Numerology, Occult, Philosophy, Tactica Imperialis
Now, you may not be able to craft/use ChemUse with this talent, which cuts back on some of the abuse, but having the ability to use ALL the lores at base Int? This is almost ascension level and if your stats are right, you can take this as soon as you can afford 600xp for the three talents (Jaded, Total Recall and this one)