private boolean checkValidDetectiveTickets(boolean check, Detective player,
			MrX mrXPlayer, TicketType ticketType) {
		if (ticketType == TicketType.Bus && player.bus.size() > 0) {
			player.bus.remove(player.bus.size() - 1);
			mrXPlayer.bus.add(ticketType);
			player.used.add(ticketType);
		} else if (ticketType == TicketType.Taxi && player.taxi.size() > 0) {
			player.taxi.remove(player.taxi.size() - 1);
			mrXPlayer.taxi.add(ticketType);
			player.used.add(ticketType);
		} else if (ticketType == TicketType.Underground
				&& player.tube.size() > 0) {
			player.tube.remove(player.tube.size() - 1);
			mrXPlayer.tube.add(ticketType);
			player.used.add(ticketType);
		}
		// otherwise check is set to false
		else {
			check = false;
		}
		return check;
	}