Mark owns a 24-hour convenience store. lately he has noticed that the liquor inventory purchases have gone up by huge amounts, although sales proceeds from this category haven't increased. he suspects his two night-shift employees. which is the best investigative method to uncover such a fraud?
a. electronic investigation. b. conversion investigation. c. inquiry investigation. d. concealment investigation.

The correct option is D: Concealment investigation

Explanation:

Marks suspects a concealment crime and hence would use concealment investigative method to tackle this. Concealment occurs when documents that might prove as evidence are being manipulated. This may include manipulating the sales invoices, checks, sales report, purchase invoices etc. It also involves the modification or outright deletion of records from the database of a company. Mark would have to use concealment-based investigation as he will have to look at his books with the aim of looking for any manipulated documents or electronic records that may have been altered. This way, he can uncover the truth.

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