The term "fresh pursuit" as used in this subchapter shall include fresh pursuit as defined by the common law, and also the pursuit of a person who has committed a felony or who is reasonably suspected of having committed a felony or who is reasonably suspected of operating a motor vehicle while under the influence of alcohol. It shall also include the pursuit of a person suspected of having committed a supposed felony, though no felony has actually been committed, if there is reasonable ground for believing that a felony has been committed. Fresh pursuit as used herein shall not necessarily imply instant pursuit, but pursuit without unreasonable delay. (Amended 1985, No. 228 (Adj. Sess.), § 1; 2017, No. 83, § 161(3).)