CA said its understanding with Betfair means it can now fully investigate any suspected breach of its gambling rules by players, officials or administrators.
"Previously there was nothing with any teeth that would allow us to investigate, we would be reliant on peoples' honesty," a CA spokesman said on Friday.
"With this agreement we will actually be able to substantiate transactions."
CA, which has outlawed gambling on cricket matches by its players, officials and employees, looked into the new agreement after learning that the International Cricket Council (ICC) had a similar arrangement.
Betfair offers internet sports betting to registered users - but every detail of the bets is fully tracked, as are the movements of all funds.
"First and foremost we hope we never have to use it (the understanding), but it will provide us with a greater degree of transparency and integrity about the whole nature of sports betting," the spokesman said.
While the new deal means only one betting agency will now help investigate corruption cases, CA says it is a step in the right direction.
"It will certainly be an improvement on where we are now," the spokesman said.
"Ultimately, there is no current sport specific legislation which gives a sport, Government or the police any sort of authority to investigate."