If incorrect/non-investigation/NOT following due process by police/sheriff personnel constitute a Civil Rights Violation?

Q:  If the police/sheriff/law enforcement personnel DID NOT do a good job of investigating a criminal complaint by a victim/citizen Constitute a Civil Right Violation? 

If the victim believes there is a clear evidence of 'crime' and due to 'connections' of the alleged criminal/s, the victim also believes the police/sheriff/law enforcement officers DO NOT do their investigation diligently and ignore the complaint nor respond to the victim about the details of the investigation. 

Can this be construed as 'violation of Civil Rights' for the victim for 'denying' the right to due process of investigation of the complaint? 

As per DOJ website, this can be a CIVIL rights Violation by Police/Sheriff/Law enforcement agency and DOJ will take this complaint. Is this a possibility?

A:  David's Answer:   I cannot assess whether DOJ would take the case, as that's something you'd need to contact them directly about. As for a private civil rights claims, the answer is most likely not. Only very rarely are lawsuits successful against police for failure to investigate, and it's usually only where police do something affirmatively to facilitate the crime or where they've assumed some specific duty of protection regarding that particular individual. Schedule a consult with a NYC civil rights lawyer for a full assessment.  -- David Bliven, Bronx Civil Rights attorney (www.blivenlaw.net)