Is Frank's profession related to art? Law enforcement? Yes.
Security? Carrying stuff? No to rest. Unlike J.P. Pruitt, he was not the world's leading hand model.
Did Frank touch the artwork? Yes!
If so: with gloves? Without? This.
Did Land on try to trick Frank? At one point, yes, but might be misleading.
Was Frank supposed to have access to the artwork? No, he was not, for SVV of "supposed to."
Was Landon not? Yesish.
WAG: Did Landon tell Frank that the artwork was hanging crooked, and ask him to right it, hoping he'd leave fingerprints which later would be incriminating? No, good idea.