new rand = Random(sizeof(PoliceMissions));
if(rand == 2 || 5) return /*stock name here to start over again i guess*/
else return rand;

stock ReturnRandomPolice( num1, num2 )
{
    new
        rand = random( num2 - num1 ) + num1
    ;
    if( rand == num1 || rand == num2 ) rand = random( num2 - num1 ) + num1;
    return rand;
}