Under the current system, police manage applications for e-bail and determine the suitability of defendants being placed in the community while they are awaiting court appearances.
Police Association president Greg O'Connor said a change in management would result in a higher risk of re-offending and bail breaches.
"There is quite a high risk of people on e-monitoring to re-offend or interfere with witnesses or abscond."
He said the Department of Corrections specialised in people who have been convicted of a crime, not those facing charges.
Police Prosecutions operations manager Inspector Mike Johnson said Corrections already electronically monitored offenders who had been convicted.
"The various agencies involved consider it logical to look at these two similar activities to see whether the services might be delivered more effectively," Johnson said.
The Department of Corrections' services assistant general manager Maria McDonald said the proposal was still in the very early stages.
See Kerre Woodham on p23 and Paul Little on p37