The club confirmed to ITV News that it was investigating Brooks for offensive tweets dating back to 2012, the year he left Northamptonshire for Yorkshire, as well as his use of the name ‘Steve’ for his former White Rose team-mate Cheteshwar Pujara.
Brooks’ habit of not using Pujara’s given name against the India batter’s wishes was discussed by Azeem Rafiq during his testimony to the Digital, Culture, Media and Sport select committee.
Concluding their probe into Brooks’ past behaviour, Somerset said: “The club has decided to reprimand Jack, remind him of his responsibilities and require him to participate in extensive training on equality, diversity and inclusivity.”
Somerset praised Brooks for his co-operation and contrition on the matter but made it clear his prior conduct fell short of the required standards.
“The club have spoken with Jack at length about the nature and content of his comments. There is no doubt that these comments are unacceptable,” said a statement.
“Somerset CCC condemn the use of language which has any racist connotations. Jack agrees with this sentiment and is embarrassed and devastated that his comments offended people and he has acknowledged that, whilst they were made nearly a decade ago when he was less mature, the content of the posts was wrong and not in accordance with his personal values.”
England bowler Tymal Mills, who was a recipient of an offensive tweet from Brooks, said he had accepted a personal apology and that the pair enjoyed a good relationship.
“Jack and I have spoken about it and I know how much he regrets having used the language he did,” said Mills.
“I believe it is right that both as a sport and as a society, we must go through a thorough process of reflection and introspection regarding the language we use towards each other and how we treat each other. Jack has apologised to me profusely and sincerely, which I have accepted, and I still consider him to be a good friend. I consider this matter to be closed and do not wish to comment on it any further.”
Stewart Laudat, another cricketer who received an offensive tweet from Brooks, said he was saddened Brooks' "character is being questioned".
Laudat said in a Twitter thread: "I understand that things that have been said or expressed are now under increased scrutiny and rightly so if we are to address all forms of discrimination.
"But without context, misunderstandings and misconceptions are easily made.
"It upsets me that Jacks character is being questioned over this tweet because I’ve known him for a long time and have never been made to feel uncomfortable in any conversations we’ve had."
Somerset went on to reveal that Brooks and his partner had been sent “threatening posts on social media”, which have subsequently been reported to the authorities.