What is the meaning of doko desu?

What is the meaning of 'doko desu?'

' Kore WA doko desu?'

Depending on the kanji used the English translation would be:

'This is Poison'

'Doko desu ka?' asks for the location of a particular object.

Tokee WA doko desu ka? = Where is the watch?

Kaia, Rachel