Last month Singaporean said the country suffered losses of about S$700 million due to large-scale haze in 2015.
MAS and CAD seize documents from several broking firms and trading representatives as part of the probe.
Singapore's privacy laws authorises slapping a penalty of $1 million on organisations that fail to protect consumers' personal data.
Singapore dollar and Malaysian ringgit have moved off 8-month highs.
Nazir, who was re-elected as CIMB chairman, said the funds transfer was a one-off event to help his brother.
Charts suggest levels $50 in coming weeks as producers are hopeful of a broader agreement among them ahead of the June OPEC meeting.
Data showed that the MAS easing last Thursday is justified.
Piracy, sea robberies and the emergent threat of transnational maritime terrorism are of concern.
The Q1 figure is a notch down from the Q4-2015 growth of 6.8% in and also marked the economy's worst performance since 2009.
The US move could aggravate the Chinese resistance against any other country claiming parts of the territory.
Most analysts were expecting the MAS to leave the policy steady.
The company officials claim it has not broken laws.
Australia's trade with India is now worth $13.1bn, just one tenth of that with China.
In March alone, the Malaysian currency has rallied around 8% against the greenback, and so far this year, the gain is more than 11.2%.
Currently, permissions have to be sought each time there is a US requirement.