Written as Jeffrey Ashford:
STAND ALONES:

Counsel for the Defense   '60
Investigations Are Proceeding  '61 (aka The D.I.)
The Burden of Proof  '62
Will Anyone Who Saw the Accident...   '63
Inquiries Are Continuing  '64 (aka The Superintendent's Room)
The Hands of Innocence  '65
Consider the Evidence  '66
Hit and Run  '66
Forget What You Saw  '67
Prisoner at the Bar  '69
To Protect the Guilty  '67
Bent Copper   '71
A Man Will Be Kidnapped Tomorrow  '72
The Double Run  '73
The Color of Violence  '74
Three Layers of Guilt  '75
Slow Down the World  '76
Hostage to Death  '77
The Anger of Fear  '78
A Recipe for Murder  '79
The Loss of the Culion  '81
Guilt with Honour  '82
A Sense of Loyalty  '83
Presumption of Guilt  '84
An Ideal Crime  '85
A Question of Principle  '86
A Crime Remembered  '87
The Honourable Detective  '88
A Conflict of Interests  '89
An Illegal Solution  '90
Deadly Reunion  '91
Twisted Justice  '92
Judgement Deferred  '93
The Bitter Bite  '94
The Price of Failure  '95
Loyal Disloyalty  '96
A Web of Circumstances   '97
The Cost of Innocence   '98
An Honest Betrayal     '99
Murder Will Out     '00
Looking-Glass Justice    '01
A Truthful Injustice    '02
A Fair Exchange Is Robbery    '03
Evidentially Guilty  '04
Deadly Corruption    '05
Illegal Guilt    '08
A Dangerous Friendship    '08
 

As Roderic Graeme, he continued the Blackshirt  series of books that his father started...