Jacqui O'Brien is a qualified Advanced Instructor with the British Institute of Professional Dog Trainers [BIPDT]. She is a member of its Board of Governors and was made a Fellow of the BIPDT in 1996. She operates her behaviour practice in Hertfordshire alongside her training school.

She has been involved in dogs since the early 1960's owning Golden Retrievers, Cocker Spaniels, German Shepherds, Australian Shepherds, training and competing in Obedience, Working Trials, Cold Game and Water Tests, Agility, and in the Breed Ring.

She has been instructing since 1969 in a variety of disciplines - from teaching puppy good manners through to higher levels of competition, especially concentrating on the owner- dog partnership and the owners understanding of canine behaviour.

After a successful career in cellular and molecular research with the publication of several scientific papers, Jacqui turned to dog training and has put about 4000 dogs through her training and behaviour classes over the last 35 + years.