Help help help.  I have been asked to teach a class of 40 police officers basic English communication, I have a few ideas but I normally teach 12-16 years old and wondered if anyone out there has run a course aimed at police ,  I was thinking of doing greetings, descriptions , directions , question words, giving advise. but can anyone else think of any good ideas that may help me?

They want a 30 hour course for officers wanting to join the tourist police.

Any advise or suggestions would be great.

Thanks in advance.

Regards

Dameon