Possible Clues:

• Retail security staff
• They go shopping for those taking goods from 8 across mostly to mistakenly test device
• Severest edict to upset employees in shops
• A number of the Garda Reserve from the start working in retail for security
• Security employees
• Force looking out for shoplifters
• Bag checking group
• 13 shops around looking for takers
• Retail staff paid for shopping
• *Antishoplifting force