Not many people know they could train a cat to wear a leash.Some are not even aware they could train a cat at all.Cats are trainable, and it just takes time and patience.

1. Not many people know they could train a cat to wear a leash. Some are not even aware they
could train a cat at all. Cats are trainable, and it just takes time
and patience.
There are benefits to training a cat to walk on a leash. Even
though felines are capable hunter explorers, they are still are
some cats as well that would rather not go outside at all, which
is unhealthy. Walking on a leash allows such cats to enjoy the
outdoors without any
threats of danger.
Just like dogs, it is easier to train cats while they are young.
The process needs to be slow with gradual escalation, or
else the cat will never learn. When training a cat, it is better
to use a harness rather than a collar. Cats can wriggle out of
collars if they panic, and the only thing they learn is the best
way to remove a collar.

2. The only rule for choosing harness and leash is that they should both be lightweight. Many
things bother cats, and they do not learn if they are bothered. Owners should make it easier on
themselves, and make the harness as natural to the cat as
possible.
Owners can start training their cats by putting the
harness on them for short periods. This comforts the
initial uneasiness cats may feel wearing a harness. If an
owner makes a cat wear the harness the whole day right
away, it may shock the cat and think it is some sort of
punishment. This will cause problems later, as the cat will
avoid the harness to avoid the punishment.
Make sure to keep the harness loose at the beginning, and let it tighten gradually as time goes
by until it is a proper fit. If a cat panics, the trainer should back off and try another day. There is
no use trying to train an upset or stressed-out cat.
Once the cat is used to the harness, it would be advisable to try walking them on a leash
indoors. No person should attempt to guide or drag
the cat; let the cat do the walking. The point of this
exercise is to let them get used to the feel of a
leash.
When the cat can walk around with the harness
and leash indoors, it would be best to slowly
introduce them to the outdoors. If the cat gets
scared of stressed, bringing them inside, and trying
again tomorrow would be the best recourse. Repeating the process further would make both
cat and owner comfortable with walking together outdoors.
http://www.shop4pets.com.au/pl.php?resetbrand=1&resetisspecial=1&isnewfilter=1
http://www.cat-world.com.au/leash-training-a-cat
http://www.cairns.qld.gov.au/regulations-and-forms/animal-management/responsible-dog-ownership