University of Canterbury sociologist Dr Jarrod Gilbert described Bennett's remarks as "sinister".
"Our country, and the principles of Western justice that underpin it, are more valuable than a political party's advantage on the hustings," he added.
Having spent many years researching his book Patched: The History of Gangs in New Zealand, he may know more about this subject than the Deputy Prime Minister.
On a visit to Whanganui for the literary festival, he explained how police data had the late, esteemed broadcaster Sir Paul Holmes listed as a "gang associate" - his daughter Millie Elder was dating the son of a gang member.
I wonder how Sir Paul would have reacted to having police raid his home without a judicially-approved warrant.
Dr Gilbert also points out that the majority of drug dealers aren't gang members.
Giving the police more resources to combat crime should be welcomed, but not at the expense of civil liberties.
Given the tendency of power to corrupt, Dr Gilbert is right to question just how far this proposed new police discretion will extend and where will it stop.