While on duty, former officer-in-charge of Teknaf Police Station Pradeep Kumar Das, accused in ex-major Sinha Rashed Md Khan killing case, used to make money from bribes and corruptions.
His wife Chumki Karan, on the other hand, under the disguise of business had been legalising the ill-gotten property of her husband.
But their misdeed came to the fore after the Anti-Corruption Commission (ACC) began an inquiry against their illegal wealth.
In the inquiry, the commission has found that Chumki amassed about Tk 3.95 crore of wealth from her husband's "illegal income".
ACC's Assistant Director Riaz Uddin filed a case against Chumki and Pradeep with the ACC's Chattogram office today.
The commission had begun the inquiry against their illegal wealth in 2018. Chumki and Pradeep were asked to submit a wealth statement on April 09, 2019. She submitted the statement on May 12, 2019.
Asked about the reason behind delay, Riaz said for the sake of proper enquiry they had to examine all necessary documents and that had consumed time.
Pradeep was withdrawn on August 5 from Teknaf Police Station after he was sued for killing the former major. He surrendered before a Cox's Bazar court on August 6.
The Daily Star obtained a copy of the FIR filed against his wife Chumki.
According to the case statement, Chumki showed that his father had given her a six-storey building in Patharghata area of Chattogram on August 1, 2013.
Chumki has two brothers who did not get any "mentionable" property from her father, finds the ACC.
"It seems that OC Pradeep Kumar Das built the building with the money earned through bribe and corruption. And to conceal it, he gave it to his father-in-law who handed it over to his wife," reads the FIR.
Chumki is a housewife. She submitted income tax return for the first time in 2013-14 fiscal year. Since then, she has been mentioning her profession business. She declared of getting involved in commission and fish business.
In her 2013-14 and 2014-15 income tax return, she declared her capital in commission business 11.2 lakh and income 3.8 lakh.
But no existence of commission business was found. She also could not provide any licence for business or bank statement in this regard.
As the wife of a government official, one needs to get approval from authority but she did not have it either.
Chumki also declared of earning Tk 1.5 crore from fish business from 2002 to 2013. She declared of taking lease of five ponds in Boalkhali in 2002 at Tk 16.5 lakh for ten years.
In the enquiry, the ACC found that his husband Pradeep joined the force in 1995 as sub-inspector. Chumki was a housewife.
They failed to show any document about the source of Tk 16.5 lakh invested in the fish business in 2002.
"It proves that Chumki, in a bid to conceal Pradeep's ill-gotten money, showed fake fish business. Her income Tk 1.5 crore from fish business is not acceptable," the FIR reads.
Analysing documents, the commission also found that Chumki had amassed Tk 4.22 crore immoveable property and spent Tk 21.7 lakh as family expenditure.
On the other hand, her legal income is found only Tk 49.13 lakh.
Therefore, she amassed Tk 3.95 crore beyond the known income sources.