Terminator 2 - Tuomion päivä

Robert Patrick undertook a rigorous running regime and practiced breathing only through his nose, in order to appear to be a cyborg that could run at high speeds without showing fatigue. He had trained so hard that he was able to catch up to Edward Furlong on his dirt bike with ease.

If the T-1000 can mimic any person or form it touches, there is no logical reason why it keeps reverting back into the form of Robert Patrick dressed as a cop once the Connors are aware of this guise. It could achieve its mission objective far easier if it used other forms to conceal its identity and then kill the Connors before they even realized.
POSSIBLE EXPLANATION: It is probable that the T-1000 knew that a uniformed police officer would be the form of human most likely to be let alone and permitted to go anywhere he pleased without being questioned or otherwise hindered, especially at security checkpoints like the prison's gate and front desk. And indeed, he is always just waved on through or buzzed in without question at these spots.

Play the Nintendo Game from Acclaim/Lin Entertainment

On the 'Ultimate Edition' DVD as well as the 'Skynet Edition' Blu-ray, there are three versions of the film, albeit only two at the menu, the Theatrical and Special Edition versions. However, highlighting the 'Special Edition' option and keying in '82997' (August 29, 1997), will open a Extended Special Edition Option, with the T-1000 searching John's room and an Alternate ending added on and replaced. Some DVD players may need to push ENTER between each digit.

Edited into Commercial Entertainment Product (1992)