The 32-year old died in hospital seven days after being arrested and taken to Heavitree Road police station.
A hearing looking into the actions of staff was heard in private last month but the details will be revealed on Friday afternoon.
Earlier this year, Devon and Cornwall Police was fined more than 234-thousand pounds for health and safety breaches following the incident in October 2012.
Teenager killed after getting out of ambulance on M5
He crossed carriageway before being hit by car
Thugs jailed for 'ferocious' attack
16 months for beating up man
Public asked for views about Devon libraries
You may be able to use them when they're closed
Christmas cancelled in Crownhill
Lights out to save cash
Hourly services return on Exeter to Waterloo line
Speed restriction removed on SWR line
£1 million Exeter Quay bridge axed
'Doing nothing is not an option'
