[bvw]

Also, as I recollect, with posion oak, like bee stings -- a person who had been unaffected can suddenly become allergic. The detective was unwise.

[hoosiermama]

I suspect the poison oak was brought up because we will hear that DW is extremely allergic to it. (But did not have it in the time frame) OR that someone else who has or will testify did have a poison oak reaction. It may hold the key in this case. Sometimes a little thing like this opens the door.