(a) Council hereby recognizes Fraternal Order of Police Local 75 for purposes of collective bargaining for sworn members of the Police Department, except the Chief of Police.
(b) Council reserves the right to give separate recognition to supervisory and nonsupervisory members of the Department if it is determined that such separation is in the interest of the residents of the city.
(c) This recognition shall be for a period of one year, and shall be renewable from year to year, but shall also be terminable if the association becomes involved in a strike, slowdown or other unlawful activity.