According to the group, the unit involves itself in civil matters.
Most family members of the detainees often find out that they have been dead for weeks and months upon visiting the police base and mortuaries.
The coalition condemned how police officers who have been implicated in violations of human rights get promoted and honoured rather than disciplined.
Ms Anyanwu’s case is one of alleged police brutality and extrajudicial killings. She eventually lost the pregnancy while her father died in custody, five days after his arrest.
The facility is headed by Assistant Commissioner of Police (ACP) Oladimeji Adeyeyiwa.
