One of the mannequins in the background is wearing the exact same outfit that Claudia had been wearing when she disappeared.
The producers opted for the less well know Utah Raptor because of its size, instead of the more commonly recognised Velociraptor as a fully grown Velociraptor was no larger than a fully grown Turkey around three feet tall whereas Utah Raptor skeletons have been found measuring upwards of seven feet tall for a adult male
Ben Miller (James Lester), Hannah Spearritt (Abby Maitland) & James Murray (Stephen Hart) all appeared on episode 2.6, A Dash of Sunshine (2013) of Death in Paradise (2011) as DI Richard Poole, Lily Shaw & Ronnie Stuart respectively.