An end is in sight to the IPCC investigation into the death of Leon Briggs as a final report will be published in March, the Luton News understands.
Justice 4 Leon campaigners were invited to an meeting with IPCC representatives at Luton Town Hall on Thursday, where they were told the police watchdog now has a firm deadline for a report of its findings.
Leon, a father-of-two from Ashburnham Road, died after he was detained by officers and taken to Luton police station under section 136 of the Mental Health Act on November 4 last year.
Campaigners have been told that although the IPCC has still not received a serious incident report from the East of England Ambulance Service, it will publish its findings in March to coincide with the next pre-inquest hearing.
J4L spokesperson Liberty Louise told the Luton News: “The IPCC has admitted it can only request evidence and has no power to demand it.
“J4L find this an obstruction to the investigation.
“Given that this is a criminal investigation and a vital piece of evidence in terms of what happened to Leon we deem the IPCC as having no authority or power to conduct a fair investigation.”
She added: “The IPCC has asked for further reports from a cardiologist and other experts.
“We find this an almost desperate attempt to go against evidence already gathered from CCTV footage and witnesses.”
The IPCC will pass a file to the CPS if there is reasonable suspicion of criminal wrongdoing.
Five officers and a police staff member remain suspended.