Mr Roy is known as a \(\textbf{shop-lifter in the city commercial centre.} \)
To solve this question, we need to understand the definition of the term "shop-lifter" as used in the context given:
A "shop-lifter" is defined as a person who steals goods from a shop while pretending to be a customer. This behavior involves entering a shop with the intention of theft, without paying for the items, and disguising oneself as a legitimate shopper. Now, let's analyze the options provided:
After carefully reviewing the options, it's clear that the correct choice is:
A thief in guise of customer
This option accurately describes a shop-lifter, as it identifies both the intent to steal and the deceitful appearance of being a true customer, which is the characteristic behavior of a shop-lifter.