Something

if(strcmp(cmd, "/r", true) == 0) {
	new tmp[256];
	tmp = strrest(cmdtext, idx);
	if(!strlen(tmp)){	SendPlayerFormattedText(playerid,"Write message",0);	return 1; } 
	if (gTeam[playerid] == TEAM_CIVILLIAN) {SendPlayerFormattedText(playerid,"The police radio is for cops only",0); return 1;
	}else {
		new senderName[MAX_PLAYER_NAME], stringg[256];
		GetPlayerName(playerid, senderName, sizeof(senderName));
		format(stringg, sizeof(stringg),"[Police Radio] %s: %s", senderName, tmp);
			for(new i=0; i<MAX_PLAYERS; i++)	{
				if ((IsPlayerConnected(i)) && (gTeam[i] == TEAM_COP)) {
					SendClientMessage(i, COLOR_BLUE, stringg);
				}
			}
	}
		return 1;
}