Flat stick tackle: all players should be able to make a clean flat stick tackle, including forwards and even goalkeepers. Bad tackles are normally made when you get caught in a bad position or are mis-timed. Poor body position, being caught flat footed, committing too early are all examples of things that can lead to making bad tackles which results in free hits in dangerous positions or being carded and temporarily suspended from the game.
Flat Tackles are optimally used when the ball carrier is moving slowly and in a confined space, allowing fewer changes of direction. These are often utilized in the defensive circle or near sidelines.