Take a look at the hints below for guidance (there are no spoilers here)!
HINT 01
Go back to the Internal Memo. What is Chief Superintendent Garrison asking you to do?
HINT 02
You need to find an alibi for Ben Erhardt who has been arrested and is now in Police custody. You need to read through all of the evidence provided inside the PART ONE envelope only, and look for clues that relate to:
1 – Ben’s location at the time of the murder.
2 – Identify who ‘Neptune’ is, as this person may be able to prove Ben’s claim
HINT 03
We advise you to only follow the other hints “Accessing the GPS WHIZZ website” and “Who is Neptune” after you have read through all of the evidence inside the PART ONE envelope and the online Police Webmail – details of which are given to you in the Internal Memo.