The state investigators have begun looking at contracts and insurance policies of the township dating back to 2008, officials said.
The state Office of the Comptroller has twice in recent weeks visited municipal offices looking at, among other things, bidding and contract documents as well as insurance contracts dating back to 2008, Jeffry Bertrand, township administrator, said.
But Bertrand said he believes the probe was a routine check that the Comptroller performs in municipalities throughout the state.
Peter McAleer, spokesman for the Comptroller’s Office, declined to comment on the investigation.
“It is our policy not to comment on any pending or potential investigations,’’ McAleer said.
Part of the office’s duties is to uncover and expose waste or other misconduct in municipal governments throughout the state.
Investigators came to town hall on Jan. 17 and Jan. 25, Bertrand said, and asked for records concerning professional services contracts dating to 2009, insurance contracts dating to 2008 and documents related to the Silo Farm and Ridgewood Road Open Space Preservation acquisitions, Bertrand said.
“I honestly think this is a routine review,’’ Bertrand said. “I don’t think there’s anything going on.’’