Protecting animals with CCTV's

While walking down Great Western road I saw a poster which had a big picture of CCTV camera and a text "save the animals". With some gogle searches I found that there is a on going campaign for installing surveillance for slaughter houses so that animals would get better treatment and people who don't follow the rules could be easier caught. I think this is one of the only ideas which plan to get more surveillance which  I would totally support. I assume that for the animals it doesn't matter if they get filmed and I know how cruel people can be with them. I signed the petition and I hope to see some results in the near future!