West-end gang Money over B**ches (MOB) operates like a close-knit family and will exact revenge on anyone who crosses them, a Police gang expert told a jury.Sergeant Alexander Rollin was testifying in the trial of Quincy Brangman, an alleged member of the MOB gang who's accused of shooting footballer Nathan Darrell on February 13.Sgt Rollin explained his job as supervisor of the gang targeting unit means he has good ties with the criminal fraternity and speaks to sources “entrenched in the criminal environment” as well as having regular contact with people on the street.Sgt Rollin said the acronym MOB stands for Money Over B**ches and can also be used to mean a Member of Bloods.“If you question a MOB gang member they are likely to tell you that it stands for My Own Boss. The MOB are a gang that operate in the western end of the Island. Their gang territory is from Somerset bridge and everywhere west of that,” explained Sgt Rollin.“The MOB are known to be involved in criminal acts which will encompass acts of violence as well as weapons offences. I would be talking about bladed articles and firearms.”Sgt Rollin said the gang works hard to defend their turf from other encroaching gangs and members rely on each other for financial aid and protection.“The MOB is like a family, a very close knit family,” said Sgt Rollin, explaining the heads of the gang are known as “shot-callers” while the lower-ranking members are called “soldiers.”“They'll always have that tight sense of family to watch each other's backs,” he explained.Asked by prosecutor Kirsty-Ann Kiellor for an insight into the psyche of the gang he replied: “With a lot of these gang members, these young men and women come from broken homes and they lack that family support. By hanging out and congregating with their friends they seem to get that support that's been lacking in their lives. And with that support can come a great deal of wealth as well as respect they would get on the street.”He agreed with Puisne Judge Carlisle Greaves, however, that not all gang members come from broken homes.“I've met gang members where the mother and father are still married and the gang members still live in the home,” he explained.Asked by the prosecutor how the gang responds to those who disrespect one or more of their members, Sgt Rollin said: “If an outside person does something to a MOB gang member, whatever you do to the one person is treated as if you're doing it to the entire gang.”He added: “The gang will be instantly looking for some sort of revenge and that revenge would either come on the person that committed the offence or the act, or someone closely associated with him or her, such as a family member.”Sgt Rollin dismissed the suggestion of Mr Brangman's lawyer, Charles Richardson, that he was just repeating hearsay and speculation.He insisted his knowledge came from interaction with gangs and their families and things he has witnessed firsthand.Mr Brangman denies the charges he faces and the case continues.