Aが出たとし、B。 (This is what the speaker is telling to another person on the phone)
Where A is an event that already happend (let's say an accident), and B means something like "I'll send you more info on that"
is とし the continuative form of とする, or is it と + し. Also I found this: what is the meaning of a た形の動詞 + とする but I'm don't know how to apply that to my sentence