Seeking other magic systems

[King Cole he/him]

I was recently wondering if a seeker could detect someone surgebinding. I feel like i have heard the answer but cant bring it to mind

[Tsidqiyah he/him]

Short answer is Yes they can, but being at work i can look up the WoB for the longer answer.

[Calderis he/him]

Quote

QUESTION

If an Allomancer found themselves on Nalthis or Roshar, would they be able to use chromium on someone using Stormlight or Breath?

BRANDON SANDERSON

I am staying away from answering too many questions like that until I start having it happen. But do know that the magics interact... some ways they interact very naturally, some ways, they don’t. One way I’ve released is, you could use bronze on most forms of Investiture to find it. So you can extrapolate that some of these things would work. But not necessarily all. All of them could be made to work.

http://www.theoryland.com/intvmain.php?i=1163#16

Pretty sure this is what you're looking for.