I received useful guidance from BCC media officer in relation to asking for answers via e-mail, when an interview could not be arranged.

News story:   Tag line for news story or news angle

Deadline (to receive answer):   Date and time

Publication:  newsbytes.com.au

Journalist:  my name and contact details.

Brief statement re news story, in particular my news angle (as it pertains to the questions I need to ask of my source).

Numbered questions.

Thank you for your assistance,

(signature).