Nathan Stone (NS) and Peter McLean (PM) are a team both professionally at Haven Power, a business energy supplier in Ipswich, UK, and also off the clock when they recently collaborated to create SafeHaven, the third place winner in the AWS DeepLens Challenge. SafeHaven was designed to protect vulnerable people, by enabling them to identify "who is at the door?" using an Alexa Skill. Unknown visitors trigger SMS or email alerts to relatives or carers, via an SNS subscription. Nathan, a BI Developer and Pete, a Data Architect, have been using AWS services to design and build the BI platform at Haven Power. However, prior to using AWS DeepLens they had no machine learning (ML) experience and didn't know where to begin.