The customer purchased property insurance that is twice the value of the business indicates potential money laundering. This could be a sign of insurance fraud, which is one of the predicate offenses for money laundering. Insurance fraud involves making false or exaggerated claims to obtain illegitimate financial benefits from an insurance company. The customer may have purchased an excessive amount of insurance to cover the value of the property and then intentionally damage or destroy it to claim the insurance payout. The customer may then use the insurance money to launder the proceeds of other criminal activities.
References:
CAMS Study Guide, 6th Edition, Chapter 1, Section 1.21
CAMS Study Guide, 6th Edition, Chapter 3, Section 3.21
ACAMS Chapter 1 Exam Questions, Question 682
6th Anti-Money Laundering Directive (6AMLD): Biggest Changes, Section 23

Reference: https://www.moneylaundering.ca/public/law/3_stages_ML.php

Explanation
The compliance officer should evaluate the request, determine whether it is valid, and provide the necessary information, subject to management approval. It is important to follow the bank's policies and procedures for responding to law enforcement requests, including verifying the authenticity of the request and the identity of the officer making the request. Additionally, it is important to protect customer privacy and ensure that sensitive information is not released to unauthorized individuals. (Reference: Certified Anti-Money Laundering Specialist (the 6th edition), Chapter 6)