Police have said this man should be behind bars.
Norris Miller, 50, is wanted on a recall to prison.
He was jailed for five years after a trial at Leeds Crown Court in 2013 for terrorising a witness.
Miller, of Thornton Lodge, had denied three charges of witness intimidation, but was found guilty.
The court heard how Miller was arrested in January 2012 after allegations that he assaulted a woman in Huddersfield.
He was bailed by police pending further inquiries, but was then said to have started a campaign of making abusive threats and sending text messages to the woman which left her terrified.
Anyone who spots Miller is urged not to approach him and contact police immediately via 999.
In unrelated investigations, police would like to speak to the people pictured in the image gallery below. The people pictured in the images may be witnesses as well as suspects. If you recognise anyone, contact police on 101 quoting the reference number on the image caption.
