And yet they used the evidence from the groups.
He is just trying to save face because the police are doing a crap job of things.
This is all in the article you're talking about.
The National Police Chiefs' Council lead for online child abuse activist groups, Assistant Chief Constable Dan Vajzovic, said vigilante groups often exceeded the boundaries of the law.
He warned some were "perpetrating offences including extortion, blackmail and exhibiting violence against those that they are targeting".
Mr Vajzovic said more than 250 prosecutions coming through the work of these groups was a positive, but pointed out that every month UK law enforcement agencies arrested more than 500 suspected child abusers.
"Some of those prosecutions may have diverted police resources from more significant offenders," he said.
"Overall the activity of these groups is not positive."
In fact I'm amazed you're managing to pull a positive outlook from that article seeing as it primarily slags off such vigilante groups for being what they are.
What does the NSPCC say in the same article.
The National Society for the Prevention of Cruelty to Children (NSPCC) said it also had some concerns about groups targeting suspected abusers.
"We have sympathy for those who worry about suspected abusers, want justice for children and feel frustrated that police can't do everything," a spokesperson for the charity said.
"However, despite their best intentions, their actions might put more children at risk of harm by driving offenders underground, endangering ongoing police work and the legal process, or result in innocent people being targeted."
The charity said protecting children must be the "ultimate priority".
"We need to know how forces and paedophile hunters can work together without jeopardising cases or potentially putting children in danger," the spokesperson said.
"If someone has concerns about child safety the best way they can help is to alert the police."
Seems they also believe the vigilante groups are not doing what is best.
The NSPCC is a responsible organisation, you fancy writing them off too.