Legal Question in Criminal Law in Texas

I am not sure what you are asking. If you want to know how long they have to file charges or seek an indictment, that would be the length of the statue of limitations for the particular crime. For example, most misdemeanors are two year. Felonies are longer (and considerably longer in some cases).

If you mean how long to produce evidence that is requested before trial, then it will depend on your trial date. Remember, they do not have to give you everything they have. For example, if you properly request it then they must give you exculpatory evidence. That is evidence that would tend to negate the crime.