I would have thought that there was enough adult (docked) Rotties in the rescue centres in Ireland to fund your 'security' company without breeding more.
Since the law in Ireland makes you muzzle and keep on a lead all Rotties at all times in all public places I think you are going to have a hard time of living with these dogs. The same law states that if a guard dog is not on the owners premises then it should have a handler with it at all times - why then would the handler allow the dog to be grabbed by the tail?
This is the law:
The Control of Dogs (Restriction of Certain Dogs) Regulation, S.I. No. 123 of 1991 requires that in order to keep the following types of dogs
Bandogs, American Pit Bull Terriers, Bulldogs, Bull Mastiffs, Doberman Pinschers, English Bull Terriers, German Shepherd (Alsatians), Japanese Akitas, Japanese Tosas, Rhodesian Ridgeback, ROTTWEILERS and Staffordshire Bull Terriers including any other strain or cross or every breed or type of dog so described - as specified in Regulation 4,
* It is necessary to have these dogs controlled by a sufficiently strong chain or leash not more than one metre in length and by a person over the age of 16 years of age who is capable of controlling the dog, Regulation 5.
* Further these dogs must be muzzled while in a public place, Regulation 6.
* These dogs must also have collars which identify the dog and give an address, Regulation 7.
Back to an Overview of The Control & Protection of Dogs
Q.33 Are there any exceptions to these restrictions?
Yes, Regulation 4(2) exempts dogs kept by the Garda Sioch�na and wholly used by a member in the exercise of his duties.