WARNING: This article contains spoilers from Shetland.

Shetland fans couldn't help but get distracted by a minor detail that left them questioning how realistic the BBC hit drama is.

Shetland has returned for series 10 and this time around, DI Ruth Calder (played by Ashley Jensen ) is investigating the death of former social worker Eadie Tulloch (Maria MacDonnell) whose body was discovered outside her home in the remote hamlet of Lunniswick.

On top of the complex murder case, there is also an ongoing problem with drugs on the island to handle and in episode four, Ruth asks for drug dealer Will's (Adam Rhazali) help.

After arresting a couple of drug couriers who admitted that they are working with someone in Shetland to bring them in, Ruth forces Will to find out who the mysterious

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