BUTTE, Mont. -

Police in Butte have arrested a man on suspicion of impersonating a public servant, driving under the influence and reckless driving.
    
47-year-old James S. Richards Sr. of Butte was arrested Tuesday and remained jailed Wednesday morning.
    
Prosecutors allege Richards was driving recklessly on Interstate 90 near Ramsay Tuesday afternoon and forced another vehicle to pull over. The four people in the vehicle said Richards confronted them and claimed to be a member of a drug task force before leaving the scene without further incident.
    
They called 911.
    
A police patrol car stopped a pickup truck matching the description of the one that forced the vehicle off the road. The officer determined that Richards was intoxicated.